SK-1000-4

SK10004 Plain Hexagon Nut
Home » Catalog » Nuts & Washers (p. 2145) » Plain Hexagon Nuts (p. 317) » Part Number SK-1000-4

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Quality Commitment

Serving our customers with quality and safety first.

  •   AS9120 Certified
  •   Audited supply chain
  •   ITAR Registered
  •   DDTC Registered
  •   HAZMAT Certified
  •   Customer service objectives
  •   Every product 100% inspected
AS9120 Certified by SAI Global

Datasheet. SK-1000-4 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

2b

Thread Direction
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.

RIGHT-Hand

Nut Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.

hexagon

Nut Height

0.178in. and 0.193in. ⁓13/64"

Width Across Flats
The shortest straight line between flats,perpendicular to the height.

0.423in. and 0.437in. ⁓7/16"

Thread Series
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.

unc

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

20

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.250in. ⁓1/4"

Bearing Surface Type
Indicates the type of bearing surface.

chamfered

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

cadmium and chromate

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

QQ-P-416, ty 2, cl 3 fed spec single treatment response

Nondefinitive Spec/std Data
The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.

2 type and 13 style

Answers.

What quantity is this sold in?

1HD

What material is the plain hexagon nut made of ?

Steel

What is the thread quantity per inch?

20

What is the thread direction?

Right-hand

What is the thread class?

2b

What is the NSN for SK-1000-4?

5310-00-997-1888

How is this classified for shipping?

Schedule B number: 7318160000
nmfc 093486
Nuts of iron or steel

What's the federal classification of SK-1000-4?

FSC 5310 ⁓ Nuts and washers

Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.

Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).

NSN 5310-00-997-1888 NUT,PLAIN,HEXAGON

cadmium surface treated 20 thread quantity per inch right-hand 2b thread class

NIIN
009971888
NIIN Date
04/13/67
Schedule B
7318160000 
Name Code
01857
FIIG
A021A0
Item Weight
0.600lbs
Item Dimensions
--
QUP
1 
Historical Price
$42.50 HD
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

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33. 1-50301 Cage 60145
34. 278-155 Cage 99167
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36. 5310PL0815348 Cage 9009H
37. 5310009971888 Cage SCY13
38. 345952503 Cage 11273
39. 10386351 Cage A486G

Major End Users Countries and entities

  • - National Aeronautics And Space Administration 
  • - National Aeronautics And Space Administration 
  • - National Aeronautics And Space Administration 
  • - Department of The Navy 
  • - Department of The Army 
  • - Department of The Air Force 
  • - National Security Agency 
  • - U.s. Marine Corps 
  • - U.s. Coast Guard 
  • - Defense Threat Reduction Agency 
  • - Austria 
  • - Finland 
  • - Poland 
  • - Brazil 
  • - Spain 
  • - Israel 
  • - Singapore 
  • - Kuwait 
  • - Morocco 
  • - Saudi Arabia 
  • - Malaysia 
  • - Australia 
  • - Belgium 
  • - Canada 
  • - New Zealand 
  • - France 
  • - Germany 
  • - Republic of Korea 
  • - United Kingdom 
  • - Netherlands 
  • - Portugal 
  • - Italy 
  • - Denmark 
  • - Norway 
  • - Greece 
  • - Turkey 
  • - Nato Maintenance And Supply Agency 

Major End Items End use applications

  • - Main feed pumps
  • - Repair facility, oa8991
  • - Test station, oq-290(v)msm
  • - Support equipment, b-1 aircraft
  • - Vehicle, aircraft refueler r-14
  • - Fire pumps
  • - Aircraft, sof ( ac-130h, mc-130h, ec-130e, hc-130)
  • - Engine, aircraft, f-108 (cfm-56, kc-135a)
  • - Missile, air-to-air, phoenix (aim-54)
  • - Shelter,nonexpandable
  • - Printing plant,special warfare,transportable
  • - Repeater set,radio
  • - Thrust trailer asse
  • - Bath unit,portable
  • - Compressor unit,reciprocating
  • - Printing plant,special warfare,transportable
  • - Bath unit,portable
  • - Printing plant,special warfare,transportable
  • - Printing plant,special warfare,transportable
  • - Truck,utility
  • - Truck,utility
  • - Plug-in unit,electrical-electronic test equipment
  • - Shelter,nonexpandable
  • - Trainer,remote scor
  • - Truck,ambulance
  • - Terminal,telegraph
  • - Printing plant,special warfare,transportable
  • - Fuel servicing unit,aircraft,trailer mounted
  • - Bath unit,portable
  • - Printing plant,special warfare,transportable
  • - Compressor unit,reciprocating
  • - Electronic shop sem
  • - Teletypewriter
  • - Shelter,nonexpandable
  • - Air conditioner
  • - Power plant,electric,trailer mounted
  • - Bath unit,portable
  • - Compressor unit,reciprocating
  • - Printing plant,special warfare,transportable
  • - Bath unit,portable
  • - Printing plant,special warfare,transportable
  • - Speech equipment
  • - Charger,battery
  • - Tank,storage,liquid argon-nitrogen-oxygen
  • - Bath unit,portable
  • - Printing plant,special warfare,transportable
  • - Printing plant,special warfare,transportable
  • - Test stand,hydrauli
  • - Pumping assembly,flammable liquid,bulk transfer
  • - Generator set,diesel engine
  • - Printing plant,special warfare,transportable
  • - Printing plant,special warfare,transportable
  • - Heater,water,liquid fuel
  • - Power supply
  • - Test stand,hydraulic system components
  • - Printing plant,special warfare,transportable
  • - Printing plant,special warfare,transportable
  • - Test stand,hydrauli
  • - Test stand,hydrauli
  • - Transmitter,rate of flow
  • - Printing plant,special warfare,transportable
  • - Teletypewriter set
  • - Control panel,test
  • - Truck,utility
  • - Communication techn
  • - Printing plant,special warfare,transportable
  • - Terminal,telegraph
  • - Printing plant,special warfare,transportable
  • - Laundry unit,trailer mounted
  • - Laundry unit,trailer mounted
  • - Motor-generator
  • - Printing plant,special warfare,transportable
  • - Printing plant,special warfare,transportable
  • - Air conditioner
  • - Terminal,telegraph
  • - Printing plant,special warfare,transportable
  • - Truck,ambulance
  • - Generator,signal
  • - Analyzer,spectrum
  • - Press section,topographic reproduction set,semitrailer mounted
  • - Laundry unit,trailer mounted
  • - Laundry unit,trailer mounted
  • - Oscilloscope
  • - Buffer,high speed
  • - Power plant,electric,semitrailer mounted
  • - Pump,rotary
  • - Test station group,
  • - Terminal,telephone
  • - Air conditioner
  • - Test stand,hydraulic system components
  • - Test stand,hydrauli
  • - Truck,utility
  • - Carrier,cargo
  • - Test set,transponder set
  • - Air conditioner
  • - Meter,noise level
  • - Press section,topographic reproduction set,semitrailer mounted
  • - Cleaner,steam,pressure jet,trailer mounted
  • - Test set,flight lin
  • - Repair facility,ele
  • - Rifle,recoilless,90 millimeter
  • - Central office,teletypewriter
  • - Terminal,telephone
  • - Cleaner,steam,pressure jet,trailer mounted
  • - Generator,sweep
  • - Shelter,nonexpandable
  • - Air conditioner
  • - Generator,signal
  • - Test set subassembly
  • - Pump unit,centrifugal
  • - Fr,sig con hnf 81-2
  • - Cleaner,steam,pressure jet,trailer mounted
  • - Air conditioner
  • - Test set,electrical power
  • - Truck,utility
  • - Cleaner,steam,pressure jet,trailer mounted
  • - Cleaner,steam,pressure jet,trailer mounted
  • - Central office,telephone,manual
  • - Multiplexer
  • - Multiplexer
  • - Motor-generator
  • - Air conditioner
  • - Air conditioner
  • - Pump unit,centrifugal
  • - Heater,bitumen
  • - Display map,sensor
  • - Pump unit,centrifugal
  • - Electronic shop
  • - Multimeter
  • - Alarm-monitor
  • - Transmitter,rate of flow
  • - Heater,bitumen
  • - Paving machine,bituminous material
  • - Truck,utility
  • - Pumping unit,centrifugal,fueling-defueling
  • - Power supply
  • - Air conditioner
  • - Heater,bitumen
  • - Telephone system
  • - Power supply
  • - Electronic shop she
  • - Power supply
  • - Heater,bitumen
  • - Sound ranging set
  • - Air conditioner
  • - Plug-in,electronic
  • - Truck,tank
  • - Air conditioner
  • - Pump,rotary
  • - Paving machine,bituminous material
  • - Simulator,radar signal
  • - Heater,space
  • - Simulator,radar signal
  • - Heater,bitumen
  • - Terminal,telegraph
  • - Camera,copying,lithographic,trailer mounted
  • - Carrier,personnel,full tracked
  • - Topographic support set
  • - Pumping assembly,flammable liquid,bulk transfer
  • - Test set,flight control system
  • - Truck,fire fighting
  • - Trailer chassis,gen
  • - Resistor,decade
  • - Air conditioner
  • - Shelter,nonexpandable
  • - Truck,lift,fork
  • - Truck,fire fighting
  • - Valve,butterfly
  • - Carrier,ammunition,tracked
  • - Radio terminal set
  • - Air conditioner
  • - Truck,utility
  • - Test set,radio
  • - Filter-drier,refrigerant
  • - Printer,projection,photographic
  • - Carrier,ammunition,tracked
  • - Carrier,ammunition,tracked
  • - Heater,duct type,portable
  • - Antenna assembly
  • - Truck,utility
  • - Generator set,diesel engine
  • - Generator set,diesel engine
  • - Electronic shop,transportable
  • - Boresight assembly,
  • - Carrier,ammunition,tracked
  • - Carrier,ammunition,tracked
  • - Repair facility,ele
  • - Public address set
  • - Carrier,ammunition,tracked
  • - Distribution box
  • - Air conditioner
  • - Generator set,diesel engine
  • - Air conditioner
  • - Heater,water,liquid fuel
  • - Switchboard,telephone,manual
  • - Power supply
  • - Shelter,nonexpandable
  • - Remote ground termi
  • - Electronic shop,semitrailer mounted
  • - Mobile audio-visual
  • - Test stand,aircraft generator
  • - Truck,utility
  • - Generator set,diesel engine,trailer mounted
  • - Generator set,diesel engine
  • - Semitrailer,van
  • - Recovery vehicle,full tracked
  • - Carrier,ammunition,tracked
  • - Truck,ambulance
  • - Telephone set
  • - Test set,telephone
  • - Valve assembly,manifold
  • - Refrigeration unit,mechanical
  • - Air conditioner
  • - Truck,utility
  • - Charger,battery
  • - Refrigeration unit,mechanical
  • - Shelter,nonexpandable
  • - Refrigeration unit,mechanical
  • - Refrigeration unit,mechanical
  • - Installation kit,electronic equipment
  • - Shelter,nonexpandable
  • - Communications term
  • - Generator set,diesel engine
  • - Control,alarm
  • - Truck,utility
  • - Power supply
  • - Rack,electrical equipment
  • - Air conditioner
  • - Test set,sound reco
  • - Power supply
  • - Shelter,nonexpandable
  • - Carrier,ammunition,tracked
  • - Converter,telegraph-telephone signal
  • - Mast,quick erect,ex
  • - Shelter,nonexpandable
  • - Adapter kit,test
  • - Dolly set,lift,transportable shelter
  • - Power supply
  • - Semitrailer,tank transporter
  • - Power supply,hydraulic,portable
  • - Tractor,wheeled,aircraft towing
  • - Shelter,nonexpandable
  • - Satellite communication control central
  • - Test set,environmental control system,aircraft
  • - Dolly set,lift,transportable shelter
  • - Message entry devic
  • - Tactical imagery in
  • - Test set,electrical power
  • - Control console,pne
  • - Stator,motor
  • - Terminal,telegraph
  • - Test stand,demand oxygen regulator
  • - Shelter,nonexpandable
  • - Stator,generator
  • - Rigging kit,aircraft maintenance
  • - Power supply,hydraulic,portable
  • - Press and plate mak
  • - Dolly set,lift,transportable shelter
  • - Pumping assembly,flammable liquid,bulk transfer
  • - Pump unit,rotary
  • - Electronic shop,semitrailer mounted
  • - Telephone set
  • - Countermeasures set
  • - Switchboard,telephone,manual
  • - Color press,cylinde
  • - Capacitor,fixed,plastic dielectric
  • - Electronic shop,semitrailer mounted
  • - Air conditioner
  • - Converter,telegraph-telephone signal
  • - Generator,signal
  • - Oscilloscope
  • - Electronic shop,semitrailer mounted
  • - Air conditioner
  • - Chassis,electrical-electronic equipment
  • - Electronic shop,semitrailer mounted
  • - Combat engineer vehicle,full tracked
  • - Data processing sys
  • - Generator set,diesel engine,trailer mounted
  • - Transmitter,rate of flow
  • - Electronic shop,semitrailer mounted
  • - Truck,utility
  • - Truck,lift,fork
  • - Truck,utility
  • - Air conditioner
  • - Semitrailer,low bed
  • - Air conditioner
  • - Air conditioner
  • - Truck,ambulance
  • - Air conditioner
  • - Truck,ambulance
  • - Oil pump assembly,engine
  • - Transmitter,rate of flow
  • - Air conditioner
  • - Repeater set,radio
  • - Maintenance facilit
  • - Shelter,nonexpandable
  • - Repeater set,radio
  • - Radio terminal set
  • - Indicator,distortion
  • - Torque converter
  • - Generator set,gas turbine engine
  • - Test station,electr
  • - Combat engineer vehicle,full tracked
  • - Valve,butterfly
  • - Motor-generator
  • - Semitrailer,tank
  • - Radio terminal set
  • - Shelter,nonexpandable
  • - Ramp,loading,vehicle
  • - Truck,utility
  • - Imagery interpretat
  • - Receiver-transmitter,radio
  • - Voice terminal
  • - Shelter,nonexpandable
  • - Generator,signal
  • - Shelter,nonexpandable
  • - Control,motor-generator
  • - Adapter kit,test
  • - Communication techn
  • - Test set,flight control system
  • - Test stand,oil temperature control valve
  • - Charger,battery
  • - Power plant,electric,trailer mounted
  • - Valve assy,air shut
  • - Multiplexer
  • - Generator,signal
  • - Darkroom,photographic,portable
  • - Test stand,hydraulic system components
  • - Shelter,nonexpandable
  • - Air conditioner
  • - Test stand,hydraulic system components
  • - Voltmeter,digital
  • - Air conditioner
  • - Tank,storage,liquid argon-nitrogen-oxygen
  • - Antenna subassembly
  • - Heater,duct type,portable
  • - Shipping and storage container,fuel tank
  • - Test stand,hydraulic system components
  • - Truck,utility
  • - Flight coordination
  • - Heater,duct type,portable
  • - Air conditioner
  • - Air conditioner
  • - Filter,low pass
  • - Multiplexer
  • - Electronic shop,transportable
  • - Trailer,ground handling
  • - Cabinet,electrical equipment
  • - Air conditioner
  • - Heater,duct type,portable
  • - Counter,electronic,digital readout
  • - Test station,elect
  • - Data processing sys
  • - Pumping assembly,flammable liquid,bulk transfer
  • - Coder,alarm
  • - Air conditioner
  • - Air conditioner
  • - Test set subassembly,aircraft components
  • - Recorder-reproducer set,sound
  • - Air conditioner
  • - Antenna
  • - Pumping assembly,flammable liquid,bulk transfer
  • - Generator,signal
  • - Saw,abrasive disk,masonry
  • - Truck,utility
  • - Lubricating and servicing unit,power operated
  • - Multiplexer
  • - Control-indicator
  • - Lubricating and servicing unit,power operated
  • - Fixture,aircraft maintenance
  • - Regulator,voltage
  • - Lubricating and servicing unit,power operated
  • - Shelter,nonexpandable
  • - Air conditioner
  • - Truck,lift,fork
  • - Lubricating and servicing unit,power operated
  • - Plate process section,topographic reproduction set,semitrailer mounted
  • - Heater,duct type,portable
  • - Beam lift,fuselage
  • - Lubricating and servicing unit,power operated
  • - Crane,truck mounted
  • - Air conditioner
  • - Adapter,counterbala
  • - Pumping assembly,flammable liquid,bulk transfer
  • - Transformer,power
  • - Recorder-reproducer,sound
  • - Lubricating and servicing unit,power operated
  • - Truck,cargo
  • - Heater,duct type,portable
  • - Truck,tank
  • - Plate process section,topographic reproduction set,semitrailer mounted
  • - Plate process section,topographic reproduction set,semitrailer mounted
  • - Inverter,power,static
  • - Lubricating and servicing unit,power operated
  • - Inverter,power,static
  • - Rectifier i section
  • - Lubricating and servicing unit,power operated
  • - Plate process section,topographic reproduction set,semitrailer mounted
  • - Power supply
  • - Plate process section,topographic reproduction set,semitrailer mounted
  • - Truck tractor
  • - Plate process section,topographic reproduction set,semitrailer mounted
  • - Rectifier i section
  • - Crane,truck mounted
  • - Shelter,nonexpandable
  • - Generator,signal
  • - Crane,truck mounted
  • - Generator set,gasoline engine
  • - Crane,truck mounted
  • - Truck,utility
  • - Landing control central
  • - Rectifier i section
  • - Truck,utility
  • - Truck,ambulance
  • - Air conditioner
  • - Finishing section,t
  • - Test set,semiconductor device
  • - Shipping and storage container,engine
  • - Vacuum pump,rotary
  • - Mechanical calibrat
  • - Air conditioner
  • - Air conditioner
  • - Shelter,nonexpandable
  • - Panel,interface device
  • - Finishing section,t
  • - Receiver-transmitter,radio
  • - Heater,space
  • - Carrier,cargo
  • - Truck,aircraft cargo loading-unloading
  • - Test stand,receiver
  • - Test stand,aircraft generator
  • - Crane,truck mounted
  • - Crane,truck mounted
  • - Air conditioner
  • - Test station,electrical-electronic equipment
  • - Simulator station,radar signal,guided missile system
  • - Crane,truck mounted
  • - Fire direction cent
  • - Generator,alternating current
  • - Air conditioner
  • - Heater,space
  • - Carrier,ammunition,tracked
  • - Truck,utility
  • - Power supply
  • - Truck,utility
  • - Air conditioner
  • - Power supply
  • - Truck,tank
  • - Truck,fire fighting
  • - Carrier,ammunition,tracked
  • - Radar set subassembly
  • - Printer,contact,photographic
  • - Air conditioner
  • - Air conditioner
  • - Air conditioner
  • - Helicopter,attack
  • - Bakery plant,trailer mounted
  • - Heater,space
  • - Fog generator,insecticidal
  • - Helicopter,attack
  • - Power supply
  • - Analyzer,spectrum
  • - Fog generator,insecticidal
  • - Converter,telegraph-telephone signal
  • - Air conditioner
  • - Truck,tank
  • - Fog generator,insecticidal
  • - Transmitter,radar
  • - Analyzer,spectrum
  • - Truck,utility
  • - Carrier,ammunition,tracked
  • - Power supply
  • - Carrier,ammunition,tracked
  • - Power supply
  • - Meter,standing wave ratio
  • - Cap,filler opening
  • - Test stand,aircraft generator
  • - Terminal,communicat
  • - Air conditioner
  • - Transmitter,rate of flow
  • - Truck,utility
  • - Generator set,diesel engine
  • - Truck,utility
  • - Test set,guided missile system test equipment
  • - Heater,duct type,portable
  • - Power plant,electric
  • - Parts kit,globe valve
  • - Analyzer,electrical pulse
  • - Training set,electronic warfare
  • - Truck,tank
  • - Telephone set
  • - Heater,duct type,portable
  • - Truck,utility
  • - Carrier,cargo
  • - Air conditioner
  • - Air conditioner
  • - Repeater set,radio
  • - Testing machine,electromechanical actuator
  • - Truck,utility
  • - Plug-in unit,electrical-electronic test equipment
  • - Radio terminal set
  • - Radio terminal set
  • - Radio terminal set
  • - Motor-generator
  • - Heater,duct type,portable
  • - Generator set,gas turbine engine
  • - Truck,ambulance
  • - Truck,lift,fork
  • - Bath unit,portable
  • - Shelter,nonexpandable
  • - Truck,aircraft cargo loading-unloading

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
Rating variable 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater 
Commodity (for shipments via water)
Bolts or nuts (iron or steel),(less than 35 feet) 
NMFC (national motor freight code)
093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3) 
UFC (universal freight code)
48950 

Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

SK-1000-4 / Nut,plain,hexagonWhat is the formal definition of this item?

A nut, flat on top and bottom having 6 flat sides. for items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. see also locknut, tube fitting. for items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)