Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , MACHINE
Definition:
AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION THROUGH HOLES IN ASSEMBLED PARTS AND NORMALLY INTENDED TO BE TIGHTENED OR RELEASED BY TORQUING A NUT. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF ONE NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER OR BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. FOR ITEMS HAVING A GRIP LENGTH PORTION MACHINED TO A TOLERANCE OF 0.0015 INCH (0.038 MM) OR LESS, BOLT, SHEAR. SEE ALSO SCREW, CAP, HEXAGON HEAD AND SCREW, MACHINE.
CAGE Information
| Code | Company |
|---|---|
| 81349 | MILITARY SPECIFICATIONS PROMULGATED |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASA | THREAD LENGTH | 0.750 INCHES MINIMUM |
| AASA | THREAD LENGTH | 0.750 INCHES MINIMUM |
| CBBL | FEATURES PROVIDED | FINISHED HEAD |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MATT | MATERIAL | STEEL COMP 1013 OVERALL OR STEEL COMP 1016 OVERALL OR STEEL COMP 1018 OVERALL OR STEEL COMP 1019 OVERALL OR STEEL COMP 1015 OVERALL OR STEEL COMP 1017 OVERALL OR STEEL COMP 1020 OVERALL OR STEEL COMP 1021 OVERALL OR STEEL COMP 1022 OVERALL |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AASK | HEAD STYLE | HEXAGON |
| AATB | WIDTH BETWEEN FLATS | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 2 GRADE |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| AASB | FASTENER LENGTH | 1.625 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM |