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 |
|---|---|
| 48431 | POWER INDUSTRIES INC |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASB | FASTENER LENGTH | 1.281 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.281 INCHES NOMINAL |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.124 INCHES NOMINAL FIRST HOLE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| CBBL | FEATURES PROVIDED | FINISHED HEAD |
| AAJD | THREAD CLASS | 3A |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| AATB | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| ANEE | GRIP LENGTH | 0.812 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4140 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM FIRST HOLE |
| CQBC | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AASA | THREAD LENGTH | 0.469 INCHES MINIMUM |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |