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 |
|---|---|---|
| AATN | SHOULDER DIAMETER | 0.458 INCHES MINIMUM FIRST SHOULDER AND 0.462 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.281 INCHES NOMINAL FIRST SHOULDER |
| AATB | WIDTH BETWEEN FLATS | 0.625 INCHES NOMINAL |
| CRKB | RIB INCLUDED ANGLE | 30.0 DEGREES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAVU | RIB QUANTITY | 24 |
| MATT | MATERIAL | STEEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASU | HEAD HEIGHT | 0.188 INCHES NOMINAL |
| AAVT | RIB MINOR DIAMETER | 0.458 INCHES NOMINAL |
| AAJD | THREAD CLASS | 2A |
| AASK | HEAD STYLE | HEXAGON |
| CQFM | HARDNESS RATING | 80.4 ROCKWELL SUPERFICIAL 15-N NOMINAL OVERALL |
| AASA | THREAD LENGTH | 0.687 INCHES MINIMUM AND 0.749 INCHES MAXIMUM |
| AAVQ | RIB LENGTH | 0.219 INCHES NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 0.438 INCHES |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| AASB | FASTENER LENGTH | 1.472 INCHES MINIMUM AND 1.532 INCHES MAXIMUM |
| AAVP | RIB MAJOR DIAMETER | 0.462 INCHES NOMINAL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.062 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CWYB | SHOULDER SHAPE | RIBBED FIRST SHOULDER |