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 |
|---|---|
| 09386 | ALLIEDSIGNAL INC ALLIEDSIGNAL BRAKIN |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASA | THREAD LENGTH | 0.320 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 1.190 INCHES MINIMUM AND 1.310 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AATN | SHOULDER DIAMETER | 0.783 INCHES MINIMUM FIRST SHOULDER AND 0.786 INCHES MAXIMUM FIRST SHOULDER |
| AAVP | RIB MAJOR DIAMETER | 0.810 INCHES MINIMUM AND 0.820 INCHES MAXIMUM |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.060 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 4427 OVERALL OR STEEL COMP 8640 OVERALL |
| AASB | FASTENER LENGTH | 2.880 INCHES MINIMUM AND 2.910 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| AAVU | RIB QUANTITY | 36 |
| AHYM | NOMINAL THREAD DIAMETER | 0.750 INCHES |
| AATX | SHOULDER LENGTH | 1.470 INCHES MINIMUM FIRST SHOULDER AND 1.500 INCHES MAXIMUM FIRST SHOULDER |
| AASU | HEAD HEIGHT | 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| AAVQ | RIB LENGTH | 0.500 INCHES NOMINAL |
| CWYB | SHOULDER SHAPE | RIBBED FIRST SHOULDER |