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 |
|---|---|
| 56442 | DIAMOND REO TRUCK CO |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CQFM | HARDNESS RATING | 223.0 BRINELL HULTGREN MINIMUM OVERALL AND 277.0 BRINELL HULTGREN MAXIMUM OVERALL |
| MATT | MATERIAL | STEEL COMP 4137 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4135 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 5140 OVERALL OR STEEL COMP 8637 OVERALL OR STEEL COMP 5135 OVERALL OR STEEL COMP 8640 OVERALL |
| CWYB | SHOULDER SHAPE | ROUND ALL SHOULDERS |
| AATX | SHOULDER LENGTH | 1.250 INCHES MINIMUM FIRST SHOULDER |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.349 INCHES MINIMUM AND 0.411 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 3A |
| AATX | SHOULDER LENGTH | 3.250 INCHES MINIMUM SECOND SHOULDER |
| AASB | FASTENER LENGTH | 6.062 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | LEFT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AATN | SHOULDER DIAMETER | 0.971 INCHES MINIMUM FIRST SHOULDER AND 0.976 INCHES MAXIMUM FIRST SHOULDER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| AAVQ | RIB LENGTH | 0.560 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| AHYM | NOMINAL THREAD DIAMETER | 0.750 INCHES |
| AASA | THREAD LENGTH | 1.390 INCHES MINIMUM AND 1.410 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 1.310 INCHES MINIMUM AND 1.350 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| AASU | HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.875 INCHES MINIMUM SECOND SHOULDER AND 0.890 INCHES MAXIMUM SECOND SHOULDER |
| AAVP | RIB MAJOR DIAMETER | 0.998 INCHES MINIMUM AND 1.006 INCHES MAXIMUM |