5305-01-286-9181
Socket Head Cap Screw
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Official Item Classification
- Name
- Socket Head Cap Screw
- (NSN) National Stock Number
- 5305-01-286-9181
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 16282
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 10/10/1988 (38 years ago)
3.940 inches minimum and 4.000 inches maximum fastener length, 1.250 inches minimum thread length, flat chamfer head style, right-hand thread direction, 3a thread class
Specs & Compatibility
3a
right-hand
1.250 inches minimum
3.940 inches minimum and 4.000 inches maximum
flat chamfer
0.550 inches minimum and 0.562 inches maximum
0.368 inches minimum and 0.375 inches maximum
0.061 inches minimum and 0.067 inches maximum
hexagon
0.375 inches
0.3125 inches minimum and 0.3160 inches maximum
6
drilled
24
180000 pounds per square inch
39.0 rockwell c minimum and 45.0 rockwell c maximum overall
155000 pounds per square inch
round internal hexagon
steel overall
cadmium and chromate overall
qq-p-416,type 2,class 2 fed spec single treatment response overall
unrf
80205-nas1351 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.
0016282
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