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 |
|---|---|
| 78500 | MERITOR HEAVY VEHICLE SYSTEMS LLC |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASL | HEAD DIAMETER | 1.312 INCHES NOMINAL |
| AASL | HEAD DIAMETER | 1.312 INCHES NOMINAL |
| AAJD | THREAD CLASS | 3A |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.125 INCHES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| AAJF | THREAD DIRECTION | LEFT-HAND |
| AASA | THREAD LENGTH | 1.056 INCHES MINIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASU | HEAD HEIGHT | 0.312 INCHES NOMINAL |
| MATT | MATERIAL | STEEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAVQ | RIB LENGTH | 0.562 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 2.375 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.9740 INCHES MINIMUM FIRST SHOULDER AND 0.9750 INCHES MAXIMUM FIRST SHOULDER |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| AAVU | RIB QUANTITY | 36 |
| AAVT | RIB MINOR DIAMETER | 0.9268 INCHES MINIMUM AND 0.9308 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.750 INCHES |
| AATX | SHOULDER LENGTH | 0.688 INCHES NOMINAL FIRST SHOULDER |
| CRKB | RIB INCLUDED ANGLE | 90.0 DEGREES NOMINAL |
| AAVP | RIB MAJOR DIAMETER | 0.9980 INCHES MINIMUM AND 1.0060 INCHES MAXIMUM |