81221S41-88ALT5PC14 Setscrew
5305-00-253-4915
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Official Item Classification
- Name
- Setscrew
- Part Number
- 81221S41-88ALT5PC14
- (NSN) National Stock Number
- 5305-00-253-4915
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 06672
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 01/01/1963 (63 years ago)
0.438 inches maximum thread length, right-hand thread direction, headless (setscrew) head style, 3a thread class, 0.406 inches minimum and 0.438 inches maximum fastener length
Specs & Compatibility
3a
right-hand
0.438 inches maximum
0.406 inches minimum and 0.438 inches maximum
headless (setscrew)
cup
cross recess type 1
0.250 inches
20
copper alloy 462 or copper alloy 464 or copper alloy 482 or copper alloy 485 overall
qq-b-637 fed spec all material responses overall
unc
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.
0006672
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