H49817-8

H498178 Self-locking Double Hexagon Nut

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Quality Commitment

Serving our customers with quality and safety first.

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Datasheet. H49817-8 specification

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

3b

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

Locking Feature
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.

prevailing torque all metal design

Lubrication
A substance designed to provide a reduction of friction between the two surfaces in contact.

dry film lubricant

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

double hexagon

Nut Height

0.384in. and 0.394in. ⁓13/32"

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

0.741in. and 0.752in. ⁓49/64"

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

unjf

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.

0.500in. ⁓1/2"

Bearing Surface Type
Indicates the type of bearing surface.

chamfered

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

coated with light blue dykem, color no. 15526, fed std 595 over 20 percent or more of surface visible after installation

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

nickel alloy

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

AMS5662 assn std single material response or AMS5663 assn std single material response

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.

copper threads and nickel threads

Specification/standard Data
The document designator of the specification or standard which established the item of supply.

76301-ST3-436 manufacturers standard

Answers.

What quantity is this sold in?

5EA

What material is the self-locking double hexagon nut made of ?

Nickel alloy

What is the thread quantity per inch?

20

What is the thread direction?

Right-hand

What is the thread class?

3b

What is the NSN for H49817-8?

5310-01-074-0253

How is this classified for shipping?

Schedule B number: 7508900000
nmfc 139820
Other articles of nickel (excluding cloth, grill & netting of nickel wire)

What's the federal classification of H49817-8?

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 5310-01-074-0253 NUT,SELF-LOCKING,DOUBLE HEXAGON

copper threads surface treated coated with light blue dykem, color no. 15526, fed std 595 over 20 percent or more of surface visible after installation 20 thread quantity per inch right-hand 3b thread class

NIIN
010740253
NIIN Date
03/24/79
Schedule B
7508900000 
Name Code
05276
FIIG
A021A0
Item Weight
0.100lbs
Item Dimensions
--
QUP
Historical Price
$45.58 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. ST3M436-8M Cage 76301
2. 77019-8 Cage 56878
3. LH11434B Cage 019L2
4. BH436-8 Cage 27238
5. LH11434B Cage 72962
6. ST3M436-8M Cage 15653
7. SLN201-8M Cage 16258
8. ST3M436-8M Cage 16258
9. ST3M436-8M Cage 27238
10. ST3M436-8M Cage 56878
11. 7019-8 Cage 80539
12. ST3M436-8M Cage 80539

Major End Users Countries and entities

  • - Department of The Navy 
  • - Department of The Air Force 
  • - Republic of Korea 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
85.0 
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)
Metal hardware 
NMFC (national motor freight code)
139820 NICKEL BOLTS/NAILS/NUTS/RIVETS ETC 
UFC (universal freight code)
70220 

Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

H49817-8 / Nut,self-locking,double hexagonWhat is the formal definition of this item?

A nut having 12 drive points and 24 sides. the bearing surface may be washer faced. an integral locking feature is incorporated in the design of the head or in the threads.