5305-00-083-3376
Close Tolerance Screw
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Official Item Classification
- Name
- Close Tolerance Screw
- (NSN) National Stock Number
- 5305-00-083-3376
- (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
- 11/24/1972 (53 years ago)
0.313 inches minimum and 0.380 inches maximum thread length, flat countersunk head style, right-hand thread direction, 3a thread class, 1.323 inches minimum and 1.370 inches maximum fastener length
Specs & Compatibility
3a
right-hand
0.313 inches minimum and 0.380 inches maximum
1.323 inches minimum and 1.370 inches maximum
flat countersunk
0.350 inches minimum and 0.381 inches maximum
0.1885 inches minimum and 0.1895 inches maximum
0.070 inches minimum and 0.080 inches maximum first hole
high-torque
0.190 inches
0.990 inches minimum and 1.010 inches maximum
32
160000 pounds per square inch
36.0 rockwell c minimum and 40.0 rockwell c maximum overall
99.0 degrees minimum and 101.0 degrees maximum
1.150 inches minimum and 1.217 inches maximum first hole
32.0 microinches bearing surface of head
32.0 microinches threads
navy special project
steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response overall
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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