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 |
|---|---|
| 76657 | NATIONAL FORGE COMPANY |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CMLP | THREAD QUANTITY PER INCH | 4 |
| AATB | WIDTH BETWEEN FLATS | 3.875 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-24093 CL CTY 1 OR TY 2 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.312 INCHES NOMINAL FIRST HOLE |
| AASB | FASTENER LENGTH | 12.500 INCHES NOMINAL |
| CBBL | FEATURES PROVIDED | FINISHED HEAD |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES GRIP |
| AASA | THREAD LENGTH | 2.938 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASU | HEAD HEIGHT | 2.750 INCHES NOMINAL |
| ANEE | GRIP LENGTH | 8.406 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AASK | HEAD STYLE | HEXAGON |
| FEAT | SPECIAL FEATURES | TAPER SHANK DIAMETER 0.125 PER FT. FROM 2.838 IN. TOP DIA. TO 2.750 IN. BOTTOM DIA. |
| MATT | MATERIAL | STEEL COMP E4340 OVERALL OR STEEL COMP 4147 OVERALL |
| AHYM | NOMINAL THREAD DIAMETER | 2.500 INCHES |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 12.187 INCHES NOMINAL FIRST HOLE |