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 | 0.317 INCHES MINIMUM AND 0.321 INCHES MAXIMUM |
| AASY | DISTANCE FROM CENTERLINE TO FLAT | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.303 INCHES MINIMUM FIRST SHOULDER AND 0.307 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.320 INCHES NOMINAL FIRST SHOULDER |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.030 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.270 INCHES MINIMUM AND 1.300 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 36.0 ROCKWELL C MAXIMUM OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MATT | MATERIAL | STEEL COMP 1335 OVERALL OR STEEL COMP 1541 OVERALL |
| AASK | HEAD STYLE | DEE |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASA | THREAD LENGTH | 0.830 INCHES MINIMUM AND 0.860 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.188 INCHES NOMINAL |
| AAVU | RIB QUANTITY | 33 |
| AAJD | THREAD CLASS | 2A |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| AAVT | RIB MINOR DIAMETER | 0.303 INCHES MINIMUM AND 0.307 INCHES MAXIMUM |
| CWYB | SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| AAVQ | RIB LENGTH | 0.260 INCHES NOMINAL |
| AASL | HEAD DIAMETER | 0.624 INCHES NOMINAL |