5305-00-272-3979
Machine Screw
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Official Item Classification
- Name
- Machine Screw
- (NSN) National Stock Number
- 5305-00-272-3979
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 06657
- (FIIG) Federal Item Identification Guide
- A500D0
- Date
- 01/01/1963 (63 years ago)
0.330 inches minimum and 0.370 inches maximum thread length, 3a thread class, right-hand thread direction, flat countersunk head style, 0.640 inches minimum and 0.680 inches maximum fastener length
Specs & Compatibility
3a
right-hand
0.330 inches minimum and 0.370 inches maximum
0.640 inches minimum and 0.680 inches maximum
flat countersunk
0.504 inches minimum and 0.514 inches maximum
slot
0.312 inches
18
60.0 degrees nominal
copper alloy 464
sae 70b assn std 1st material response or qq-b-639 fed spec 2nd material response
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.
S9I
0006657
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