5305-01-243-0157
Close Tolerance Screw
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Official Item Classification
- Name
- Close Tolerance Screw
- (NSN) National Stock Number
- 5305-01-243-0157
- (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
- 10/21/1986 (39 years ago)
3a thread class, 0.331 inches minimum and 0.438 inches maximum thread length, 1.356 inches minimum and 1.376 inches maximum fastener length, flat countersunk head style, right-hand thread direction
Specs & Compatibility
3a
right-hand
0.331 inches minimum and 0.438 inches maximum
1.356 inches minimum and 1.376 inches maximum
flat countersunk
0.449 inches minimum and 0.507 inches maximum
detent ball threads
0.2483 inches minimum and 0.2492 inches maximum
offset cruciform (torque set)
0.250 inches
0.938 inches minimum and 0.954 inches maximum
28
36.0 rockwell c minimum and 41.0 rockwell c maximum overall
99.0 degrees minimum and 101.0 degrees maximum
32.0 microinches grip
32.0 microinches threads
internal drive ribbed
steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 4130 or steel comp 6150 overall
cadmium and chromate overall
qq-p-416 ty2,cl2 fed spec single treatment response overall
unjf
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.
0029294
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