NAS1580A4T8 Close Tolerance Screw
5305-01-059-0213
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Official Item Classification
- Name
- Close Tolerance Screw
- Part Number
- NAS1580A4T8
- (NSN) National Stock Number
- 5305-01-059-0213
- (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
- 04/06/1978 (48 years ago)
3a thread class, right-hand thread direction, 0.378 inches minimum and 0.428 inches maximum thread length, 0.888 inches minimum and 0.918 inches maximum fastener length, flat countersunk head style
Specs & Compatibility
3a
right-hand
0.378 inches minimum and 0.428 inches maximum
0.888 inches minimum and 0.918 inches maximum
flat countersunk
0.464 inches minimum and 0.507 inches maximum
0.2485 inches minimum and 0.2495 inches maximum
offset cruciform (torque set)
0.250 inches
0.490 inches minimum and 0.510 inches maximum
28
160000 pounds per square inch
36.0 rockwell c minimum and 40.0 rockwell c maximum overall
100.0 degrees nominal
32.0 microinches grip
32.0 microinches threads
steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
cadmium and chromate overall
qq-p-416,type 2,class 2 fed spec single treatment response overall
unjf
80205-nas1581 professional/industrial association standard
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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