5305-01-019-0839
Close Tolerance Screw
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Official Item Classification
- Name
- Close Tolerance Screw
- (NSN) National Stock Number
- 5305-01-019-0839
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 29294
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 04/14/1976 (50 years ago)
flat countersunk head style, 0.397 inches nominal thread length, right-hand thread direction, 3a thread class, 1.944 inches minimum and 1.974 inches maximum fastener length
Specs & Compatibility
3a
right-hand
0.397 inches nominal
1.944 inches minimum and 1.974 inches maximum
flat countersunk
0.497 inches minimum and 0.507 inches maximum
0.2490 inches minimum and 0.2495 inches maximum
0.076 inches minimum and 0.081 inches maximum first hole
high-torque
0.250 inches
1.552 inches minimum and 1.572 inches maximum
28
100.0 degrees nominal
1.833 inches minimum and 1.853 inches maximum first hole
steel corrosion resisting overall
passivate overall
unjf
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.
0029294
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| Part Number | Description |
|---|---|
| HT4036-4D25 | Close Tolerance Screw |
| ST3M680-4D25 | Close Tolerance Screw |