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 |
|---|---|
| 77445 | UNITED TECHNOLOGIES CORPORATION DBA |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.628 INCHES MINIMUM AND 0.688 INCHES MAXIMUM |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.628 INCHES MINIMUM AND 0.688 INCHES MAXIMUM |
| AATC | EXTENDED WASHER DIAMETER | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| AAJD | THREAD CLASS | 3A |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUB | HOLE DIAMETER | 0.062 INCHES NOMINAL |
| CRHC | HOLE CONFIGURATION STYLE | DOUBLE HEXAGON FLATS |
| ASXK | HOLE QUANTITY | 1 |
| AASA | THREAD LENGTH | 0.677 INCHES MINIMUM AND 0.757 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL |
| AASU | HEAD HEIGHT | 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AATD | EXTENDED WASHER THICKNESS | 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| BQDM | HOLE TYPE | DRILLED |
| AAWC | FIRST DIAMETER FROM HEAD | 0.267 INCHES MINIMUM AND 0.272 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.362 INCHES MINIMUM AND 0.377 INCHES MAXIMUM |
| AASK | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |