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 |
|---|---|
| K2171 | TWIN DISC INTERNATIONAL S A |
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASA | THREAD LENGTH | 1.120 INCHES NOMINAL |
| AASA | THREAD LENGTH | 1.120 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| CBBL | FEATURES PROVIDED | FINISHED HEAD |
| AAJD | THREAD CLASS | 3A |
| AATD | EXTENDED WASHER THICKNESS | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MATT | MATERIAL | STEEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AATB | WIDTH BETWEEN FLATS | 0.495 INCHES MINIMUM AND 0.503 INCHES MAXIMUM |
| AATC | EXTENDED WASHER DIAMETER | 0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| AASK | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 13 |
| AASB | FASTENER LENGTH | 1.250 INCHES NOMINAL |