B4H26A Machine Bolt
5306-00-182-2020
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Official Item Classification
- Name
- Machine Bolt
- Part Number
- B4H26A
- (NSN) National Stock Number
- 5306-00-182-2020
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5306 Bolts
- (INC) Item Name Code
- 01847
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 01/01/1963 (63 years ago)
2.781 inches nominal fastener length, right-hand thread direction, hexagon head style, 3a thread class, 0.469 inches minimum thread length
Specs & Compatibility
3a
right-hand
0.469 inches minimum
2.781 inches nominal
hexagon
0.140 inches minimum and 0.172 inches maximum
0.428 inches minimum and 0.440 inches maximum
0.046 inches nominal
0.250 inches
2.312 inches nominal
1
drilled
finished head
28
125000 pounds per square inch
26.0 rockwell c minimum and 32.0 rockwell c maximum overall
hexagon flats
steel comp 4037 or steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 8740 or steel comp 4140 overall
mil-b-6812 mil spec all material responses overall
cadmium and chromate overall
qq-p-416,type 2,class 3 fed spec all treatment responses overall
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.
0001847