5305-00-543-4809
Close Tolerance Screw
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Official Item Classification
- Name
- Close Tolerance Screw
- (NSN) National Stock Number
- 5305-00-543-4809
- (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
- 01/01/1963 (63 years ago)
0.443 inches minimum and 0.510 inches maximum thread length, 3a thread class, right-hand thread direction, 0.765 inches minimum and 0.812 inches maximum fastener length, flat countersunk head style
Specs & Compatibility
3a
right-hand
0.443 inches minimum and 0.510 inches maximum
0.765 inches minimum and 0.812 inches maximum
flat countersunk
0.497 inches minimum and 0.507 inches maximum
0.2487 inches minimum and 0.2492 inches maximum
0.076 inches nominal first hole
hexagon
0.250 inches
0.302 inches minimum and 0.322 inches maximum
0.157 inches minimum and 0.159 inches maximum
28
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
0.612 inches minimum and 0.634 inches maximum first hole
32.0 microinches grip
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
unf
80205-nas334 professional/industrial association standard
Regulatory Compliance
Precious metal content is unknown
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 |
|---|---|
| NAS334-6 | Close Tolerance Screw |