B1821BH044F175D Hexagon Head Cap Screw
5305-01-408-2471
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Official Item Classification
- Name
- Hexagon Head Cap Screw
- Part Number
- B1821BH044F175D
- (NSN) National Stock Number
- 5305-01-408-2471
- (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
- 01/28/1988 (38 years ago)
1.688 inches minimum and 1.750 inches maximum fastener length, hexagon head style, 1.126 inches minimum and 1.314 inches maximum thread length, 2a thread class, right-hand thread direction
Specs & Compatibility
2a
right-hand
1.126 inches minimum and 1.314 inches maximum
1.688 inches minimum and 1.750 inches maximum
hexagon
0.272 inches minimum and 0.291 inches maximum
0.612 inches minimum and 0.625 inches maximum
0.0605 inches minimum and 0.0685 inches maximum
0.438 inches
1
drilled
20
150000 pounds per square inch
32.0 rockwell c minimum and 38.0 rockwell c maximum overall
hexagon flats
63.0 microinches threads
steel overall
saej429 grade 8 assn std single material response overall
zinc and chromate overall
astm b633 ty 2 sc 3 assn std single treatment response overall
unf
2 type and 10p style and 8 grade
Regulatory Compliance
Precious metal content is unknown
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
Related Hardware Products
| Part Number | Description |
|---|---|
| B1821BH044F175D | Hexagon Head Cap Screw |
| MS18153-89 | Hexagon Head Cap Screw |