5305-01-678-8583
Hexagon Head Cap Screw
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Official Item Classification
- Name
- Hexagon Head Cap Screw
- (NSN) National Stock Number
- 5305-01-678-8583
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 18257
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 03/01/2019 (7 years ago)
2.250 inches nominal fastener length, 1.250 inches nominal thread length, 2a thread class, right-hand thread direction, hexagon head style
Specs & Compatibility
2a
right-hand
1.250 inches nominal
2.250 inches nominal
hexagon
0.378 inches minimum and 0.403 inches maximum
0.922 inches minimum and 0.938 inches maximum
5420-01-545-7365
0.625 inches
20
150000 pounds per square inch
33.0 rockwell c minimum and 39.0 rockwell c maximum overall
63.0 microinches threads
steel overall
saej429 grade bd assn std single material response overall
aluminum and zinc overall
astm b633 ty 2 sc 3 assn std single treatment response overall
unc
Regulatory Compliance
Item does not contain precious metal.
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
0018257
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| Part Number | Description |
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| AES01C625B25AW9M31 | Hexagon Head Cap Screw |