5305-01-453-9250
Close Tolerance Screw
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Official Item Classification
- Name
- Close Tolerance Screw
- (NSN) National Stock Number
- 5305-01-453-9250
- (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
- 03/13/1998 (28 years ago)
right-hand thread direction, flat countersunk head style, 3a thread class, 1.638 inches minimum and 1.668 inches maximum fastener length, 0.403 inches maximum thread length
Specs & Compatibility
3a
right-hand
0.403 inches maximum
1.638 inches minimum and 1.668 inches maximum
flat countersunk
0.350 inches minimum and 0.399 inches maximum
0.2490 inches minimum and 0.2495 inches maximum
torque-set ribbed
0.250 inches
1.240 inches minimum and 1.260 inches maximum
28
160000 pounds per square inch
99.0 degrees minimum and 101.0 degrees maximum
iron alloy 660 overall
ams 5731 assn std single material response or ams 5732 assn std single material response or ams 5337 assn std single material response or ams 5853 assn std single material response overall
passivate overall
qq-p-35 fed spec single treatment response overall
unjf
80205-nas1581 professional/industrial association standard
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 |
|---|---|
| NAS1581C4T20 | Close Tolerance Screw |