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 |
|---|---|
| 15653 | ALCOA GLOBAL FASTENERS INC. |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| AASB | FASTENER LENGTH | 0.756 INCHES MINIMUM AND 0.776 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAVU | RIB QUANTITY | 12 |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AATN | SHOULDER DIAMETER | 1.910 INCHES MINIMUM FIRST SHOULDER AND 1.925 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.157 INCHES MINIMUM FIRST SHOULDER AND 0.167 INCHES MAXIMUM FIRST SHOULDER |
| AASA | THREAD LENGTH | 0.604 INCHES NOMINAL |
| AASL | HEAD DIAMETER | 0.357 INCHES MINIMUM AND 0.377 INCHES MAXIMUM |
| CSYT | CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| AASU | HEAD HEIGHT | 0.064 INCHES MINIMUM AND 0.074 INCHES MAXIMUM |
| CWYB | SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| CMLP | THREAD QUANTITY PER INCH | 32 |