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 |
|---|---|
| 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CQHQ | MINIMUM YIELD STRENGTH | 85000 POUNDS PER SQUARE INCH |
| AASA | THREAD LENGTH | 0.425 INCHES MINIMUM AND 0.475 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM |
| CFSG | NONSTANDARD THREAD PITCH DIAMETER | +0.1644/+0.1667 INCHES |
| CQFM | HARDNESS RATING | 24.0 ROCKWELL C MINIMUM OVERALL AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| CBBL | FEATURES PROVIDED | FINISHED HEAD |
| CQBC | MINIMUM TENSILE STRENGTH | 130000 POUNDS PER SQUARE INCH |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES GRIP |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AATB | WIDTH BETWEEN FLATS | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM |
| MATT | MATERIAL | IRON ALLOY 660 OVERALL |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AATD | EXTENDED WASHER THICKNESS | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM |
| ANEE | GRIP LENGTH | 0.535 INCHES MINIMUM AND 0.565 INCHES MAXIMUM |
| AATC | EXTENDED WASHER DIAMETER | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| AASK | HEAD STYLE | DOUBLE HEXAGON W/HOLE |