NAS1123-7B Close Tolerance Screw
5305-01-351-0807
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Official Item Classification
- Name
- Close Tolerance Screw
- Part Number
- NAS1123-7B
- (NSN) National Stock Number
- 5305-01-351-0807
- (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
- 12/30/1991 (34 years ago)
3a thread class, right-hand thread direction, flat chamfer head style, 0.251 inches minimum and 0.301 inches maximum thread length, 0.699 inches minimum and 0.729 inches maximum fastener length
Specs & Compatibility
3a
right-hand
0.251 inches minimum and 0.301 inches maximum
0.699 inches minimum and 0.729 inches maximum
flat chamfer
0.306 inches minimum and 0.313 inches maximum
0.103 inches minimum and 0.118 inches maximum
0.1885 inches minimum and 0.1895 inches maximum
offset cruciform (torque set)
0.190 inches
0.428 inches minimum and 0.448 inches maximum
32
160000 pounds per square inch
36.0 rockwell c minimum and 40.0 rockwell c maximum overall
32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads
black overall
steel comp 4140 or steel comp e4340 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-6049 mil spec 3rd material response overall
cadmium and chromate overall
qq-p-416 ty 2 cl 2 fed spec single treatment response overall
unjf
80205-nas1123 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
Related Hardware Products
| Part Number | Description |
|---|---|
| NAS1123-7B | Close Tolerance Screw |