Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , EXTERNALLY RELIEVED BODY
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES UNDERCUTS FOR THREAD RELIEF). IT IS NO. 10 (0.190 IN.) (5 MM) OR LARGER IN SIZE AND HAS A HEAD WHICH IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER OR DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, INTERNAL WRENCHING AND THUMBSCREW. SEE ALSO SCREW, EXTERNALLY RELIEVED BODY.
CAGE Information
| Code | Company |
|---|---|
| 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMS |
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AAWL | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER | 2.220 INCHES NOMINAL |
| AAWC | FIRST DIAMETER FROM HEAD | 0.525 INCHES MINIMUM AND 0.526 INCHES MAXIMUM |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.770 INCHES MINIMUM FIRST HOLE AND 2.780 INCHES MAXIMUM FIRST HOLE |
| AASB | FASTENER LENGTH | 2.940 INCHES NOMINAL |
| AAWD | SECOND DIAMETER FROM HEAD | 0.425 INCHES MINIMUM AND 0.530 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 3A |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.140 INCHES NOMINAL FIRST HOLE |
| MATT | MATERIAL | STEEL COMP 8640 OVERALL |
| AAWF | FOURTH DIAMETER FROM HEAD | 0.425 INCHES MINIMUM AND 0.430 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 28.0 ROCKWELL C MINIMUM OVERALL AND 33.0 ROCKWELL C MAXIMUM OVERALL |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 4 |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAWJ | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.980 INCHES NOMINAL |
| AAWE | THIRD DIAMETER FROM HEAD | 0.510 INCHES MINIMUM AND 0.511 INCHES MAXIMUM |
| AAWK | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 1.680 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.240 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| FEAT | SPECIAL FEATURES | HOLE DRILLED PERPENDICULAR TO AND THROUGH COTTER PIN HOLE |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| AASA | THREAD LENGTH | 0.660 INCHES MINIMUM AND 0.700 INCHES MAXIMUM |