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 |
|---|---|---|
| AAWG | FIFTH DIAMETER FROM HEAD | 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |
| AAWG | FIFTH DIAMETER FROM HEAD | 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |
| AAWL | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER | 2.250 INCHES MINIMUM AND 2.290 INCHES MAXIMUM |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.190 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 3A |
| AATB | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| AASK | HEAD STYLE | SQUARE |
| AAWK | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 1.090 INCHES MINIMUM AND 1.130 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAWD | SECOND DIAMETER FROM HEAD | 0.194 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 0.300 INCHES MINIMUM AND 0.340 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 5 |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| AASU | HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| AAWC | FIRST DIAMETER FROM HEAD | 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |
| AAWJ | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.710 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| AAWM | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIFTH DIAMETER | 2.600 INCHES MINIMUM AND 2.660 INCHES MAXIMUM |
| AAWE | THIRD DIAMETER FROM HEAD | 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 2.940 INCHES MINIMUM AND 2.960 INCHES MAXIMUM |
| AAWF | FOURTH DIAMETER FROM HEAD | 0.194 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |