5305-00-259-1107
Machine Screw
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Official Item Classification
- Name
- Machine Screw
- (NSN) National Stock Number
- 5305-00-259-1107
- (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
- 06/27/1973 (53 years ago)
3a thread class, right-hand thread direction, 0.346 inches minimum and 0.448 inches maximum thread length, 0.470 inches minimum and 0.500 inches maximum fastener length, flat countersunk head style
Specs & Compatibility
3a
right-hand
0.346 inches minimum and 0.448 inches maximum
0.470 inches minimum and 0.500 inches maximum
flat countersunk
0.267 inches minimum and 0.279 inches maximum
cross recess type 1
0.138 inches
32
125000 pounds per square inch
26.0 rockwell c minimum and 32.0 rockwell c maximum
100.0 degrees nominal
steel comp 4037 or steel comp 8630
ams 6300 assn std 1st material response or mil-s-6050 mil spec 2nd material response
cadmium and chromate
qq-p-416,ty 2,cl 3 fed spec all treatment responses
color gray no. 36307 fed-std-595
unc
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
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