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 |
|---|---|
| 83120 | PRESSED METALS OF AMERICA INC |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AATN | SHOULDER DIAMETER | 0.840 INCHES NOMINAL FIRST SHOULDER |
| AATN | SHOULDER DIAMETER | 0.840 INCHES NOMINAL FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.906 INCHES NOMINAL FIRST SHOULDER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| AASB | FASTENER LENGTH | 2.469 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL OR ZINC OVERALL |
| AASL | HEAD DIAMETER | 1.188 INCHES NOMINAL |
| AAVP | RIB MAJOR DIAMETER | 0.875 INCHES NOMINAL |
| AAJD | THREAD CLASS | 3A |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.125 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 300.0 BRINELL STANDARD MINIMUM OVERALL AND 350.0 BRINELL STANDARD MAXIMUM OVERALL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| MATT | MATERIAL | STEEL COMP 3135 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8640 OVERALL OR STEEL COMP 4135 OVERALL |
| AAVU | RIB QUANTITY | 25 |
| AASU | HEAD HEIGHT | 0.312 INCHES NOMINAL |
| AAVQ | RIB LENGTH | 0.781 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| AHYM | NOMINAL THREAD DIAMETER | 0.750 INCHES |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| AASA | THREAD LENGTH | 1.156 INCHES MINIMUM |
| FEAT | SPECIAL FEATURES | 5/32 IN. BY 45 DEG CHAMFER ON HEAD END |