5305-00-720-8665
Machine Screw
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Official Item Classification
- Name
- Machine Screw
- (NSN) National Stock Number
- 5305-00-720-8665
- (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
- 01/01/1963 (63 years ago)
3a thread class, flat countersunk head style, 0.531 inches minimum thread length, right-hand thread direction, 0.719 inches nominal fastener length
Specs & Compatibility
3a
right-hand
0.531 inches minimum
0.719 inches nominal
flat countersunk
0.246 inches minimum and 0.249 inches maximum
cross recess type 1
0.250 inches
28
125000 pounds per square inch
26.0 rockwell c minimum and 32.0 rockwell c maximum
99.0 degrees minimum and 101.0 degrees maximum
steel
cadmium
low friction,dry film lubricant coating
unf
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