5305-01-338-3363
Close Tolerance Screw
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Official Item Classification
- Name
- Close Tolerance Screw
- (NSN) National Stock Number
- 5305-01-338-3363
- (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
- 05/02/1991 (35 years ago)
3a thread class, 0.511 inches minimum and 0.541 inches maximum fastener length, right-hand thread direction, 0.338 inches nominal thread length, flat countersunk head style
Specs & Compatibility
3a
right-hand
0.338 inches nominal
0.511 inches minimum and 0.541 inches maximum
flat countersunk
0.339 inches minimum and 0.381 inches maximum
0.1890 inches minimum and 0.1895 inches maximum
offset cruciform (torque set)
0.190 inches
0.178 inches minimum and 0.198 inches maximum
dry film lubricant
32
160000 pounds per square inch
99.0 degrees minimum and 101.0 degrees maximum
32.0 microinches bearing surface of head
navy special project
iron alloy 660 overall
ams 5731 assn std single material response or ams 5735 assn std single material response or ams 5737 assn std single material response overall
passivate 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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| Part Number | Description |
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| NAS1790C3R3L | Close Tolerance Screw |