Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , RIBBED SHOULDER
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER. IT HAS A SERIES OF LONGITUDINAL RIBS, SPLINES OR SERRATIONS ON ALL OR A PART OF THE SHOULDER. THE MINOR DIAMETER OF THE RIBS MUST BE GREATER THAN THE MAJOR DIAMETER OF THE THREADS. SEE ALSO BOLT, RIBBED NECK.
CAGE Information
| Code | Company |
|---|---|
| 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMS |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CMLP | THREAD QUANTITY PER INCH | 24 |
| AAVP | RIB MAJOR DIAMETER | 0.490 INCHES MINIMUM AND 0.495 INCHES MAXIMUM |
| AASK | HEAD STYLE | PAN NO. 2 |
| AASL | HEAD DIAMETER | 0.625 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.438 INCHES NOMINAL FIRST SHOULDER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AATX | SHOULDER LENGTH | 0.188 INCHES NOMINAL FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP 1040 OVERALL |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.031 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAVQ | RIB LENGTH | 0.156 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASU | HEAD HEIGHT | 0.188 INCHES NOMINAL |
| CFSG | NONSTANDARD THREAD PITCH DIAMETER | +0.3446/+0.3479 INCHES |
| CQBC | MINIMUM TENSILE STRENGTH | 110000 POUNDS PER SQUARE INCH |
| AASB | FASTENER LENGTH | 1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 0.875 INCHES MINIMUM AND 0.937 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| CQFM | HARDNESS RATING | 20.0 ROCKWELL C MINIMUM OVERALL AND 25.0 ROCKWELL C MAXIMUM OVERALL |
| CWYB | SHOULDER SHAPE | RIBBED FIRST SHOULDER |