420522 Machine Screw
5305-00-042-0522
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Official Item Classification
- Name
- Machine Screw
- Part Number
- 420522
- (NSN) National Stock Number
- 5305-00-042-0522
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 06657
- (FIIG) Federal Item Identification Guide
- A500D0
- Date
- 01/01/1961 (65 years ago)
right-hand thread direction, 2a thread class, 0.650 inches nominal thread length, flat countersunk head style, 0.750 inches nominal fastener length
Specs & Compatibility
2a
right-hand
0.650 inches nominal
0.750 inches nominal
flat countersunk
0.308 inches minimum and 0.332 inches maximum
slot
0.164 inches
36
80.0 degrees minimum and 82.0 degrees maximum
steel comp 1010 or steel comp 1011 or steel comp 1015 or steel comp 1016 or steel comp 1018 or steel comp 1019 or steel comp 1020
qq-s-633 fed spec all material responses
phosphate
unf
2s style and 1 type
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.
0006657
Related Hardware Products
| Part Number | Description |
|---|---|
| 420522 | Machine Screw |