21189

21189 Hexagon Slotted Plain Nut

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Quality Commitment

Serving our customers with quality and safety first.

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AS9120 Certified by SAI Global

Datasheet. 21189 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.

slotted, hexagon

Nut Height

0.617in. and 0.665in. ⁓43/64"

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

1.088in. and 1.125in. ⁓1-1/8"

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

unf

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

16

Hardness Rating
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.

69.0 rockwell b and 32.0 rockwell c

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

0.750in. ⁓3/4"

Bearing Surface Type
Indicates the type of bearing surface.

chamfered or washer faced

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.

4 type and 16 style and b grade

Answers.

What material is the hexagon slotted plain nut made of ?

Steel

What is the thread quantity per inch?

16

What is the thread direction?

Right-hand

What is the thread class?

2b

What is the NSN for 21189?

5310-00-998-0608

How is this classified for shipping?

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

What's the federal classification of 21189?

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 5310-00-998-0608 NUT,PLAIN,SLOTTED,HEXAGON

cadmium surface treated 16 thread quantity per inch right-hand 2b thread class

NIIN
009980608
NIIN Date
12/05/66
Schedule B
7318160000 
Name Code
01859
FIIG
A021A0
Item Weight
0.100lbs
Item Dimensions
--
QUP
 
Historical Price
$5.10 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. M727 Cage 03240
2. MS35692-61 Cage 96906
3. FFN836 Cage 81348
4. 701-4711389 PIECE 34 Cage 80064
5. 70199 Cage 15434
6. 0900988-7 Cage 6N299
7. N512 Cage 78500
8. 0900988 Cage 92392
9. 900988 Cage 92392
10. 102651 Cage 21450
11. XX002-6908 Cage H2229
12. 397844 Cage 11862
13. MS35692-1222 Cage 96906
14. 5310-543-5752 Cage SCY13
15. 5310005435752 Cage SCY13
16. 5310009980608 Cage SCY13
17. FFN836GPBTYPE1STYLE3 Cage 81348

Major End Users Countries and entities

  • - Department of The Navy 
  • - Department of The Army 
  • - Department of The Air Force 
  • - U.s. Marine Corps 
  • - Austria 
  • - Lithuania 
  • - Poland 
  • - Brazil 
  • - Spain 
  • - Singapore 
  • - Kuwait 
  • - Morocco 
  • - Australia 
  • - Belgium 
  • - Canada 
  • - New Zealand 
  • - France 
  • - Germany 
  • - Republic of Korea 
  • - United Kingdom 
  • - Netherlands 
  • - Portugal 
  • - Italy 
  • - Denmark 
  • - Norway 
  • - Greece 
  • - Turkey 

Major End Items End use applications

  • - Elevators, cargo/weapons
  • - Support equipment, b-52 aircraft
  • - Engine, aircraft tf33-pw-102 (c-135e, ec-135h/k/p)
  • - Engine, aircraft tf33-p-3/5/9 (c/ec-135, b-52h)
  • - Aircraft, c-2a (reprocured)
  • - Engine, aircraft, tf-33-p-7 (c-141a/b)
  • - Helicopter, mh-53e
  • - Helicopter, advance attack, ah-1w
  • - Mk 28, 5-inch 38 caliber twin gun mount
  • - Tank,storage,liquid argon-nitrogen-oxygen
  • - Compressor unit,reciprocating
  • - Truck,lift,fork
  • - Truck,lift,fork
  • - Camera,copying,lithographic,trailer mounted
  • - Rifle,recoilless,106 millimeter
  • - Mast,quick erect,ex
  • - Truck,lift,fork
  • - Tractor,wheeled,warehouse
  • - Recovery vehicle,full tracked
  • - Tank,storage,liquid argon-nitrogen-oxygen
  • - Rifle,recoilless,106 millimeter
  • - Cone and rollers,tapered roller bearing

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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

21189 / Nut,plain,slotted,hexagonWhat is the formal definition of this item?

A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. it is designed to provide positive locking when used with a solid or split (cotter) pin. excludes nut (1), plain, castellated, hexagon.