5305-01-443-8437
Tapping Screw
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Official Item Classification
- Name
- Tapping Screw
- (NSN) National Stock Number
- 5305-01-443-8437
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 41756
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 04/19/1997 (29 years ago)
0.264 inches nominal head height, 0.624 inches minimum and 0.676 inches maximum extended washer diameter, 0.750 inches nominal fastener length, 0.500 inches nominal width between flats, hexagon extended washer head style
Specs & Compatibility
0.750 inches nominal
hexagon extended washer
0.264 inches nominal
0.500 inches nominal
0.624 inches minimum and 0.676 inches maximum
0.035 inches minimum and 0.055 inches maximum
w/o internal drive
casehardened
45.0 rockwell c minimum and 50.0 rockwell c maximum overall
double flute (type f)
0.312 inches
steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524 overall
zinc and chromate overall
astm b633 assn std single treatment response overall
f type
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.
0041756
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| Part Number | Description |
|---|---|
| 12377969-2 | Tapping Screw |