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 |
|---|---|
| SCY13 | E.C.A ETABLISSEMENT CENTRAL DES APPR |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA 108 ASSN STD ALL MATERIAL RESPONSES OVERALL OR ASTMA 576 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATT | MATERIAL | STEEL COMP 1008 OVERALL OR STEEL COMP 1116 OVERALL OR STEEL COMP 1119 OVERALL OR STEEL COMP 1211 OVERALL OR STEEL COMP 1025 OVERALL OR STEEL COMP 1213 OVERALL |
| AAVP | RIB MAJOR DIAMETER | 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 3A |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.125 INCHES NOMINAL |
| AATX | SHOULDER LENGTH | 1.190 INCHES NOMINAL FIRST SHOULDER |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASB | FASTENER LENGTH | 4.000 INCHES MINIMUM AND 4.031 INCHES MAXIMUM |
| AAVU | RIB QUANTITY | 25 |
| AASU | HEAD HEIGHT | 0.312 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL3 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR ASTM B633 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| AHYM | NOMINAL THREAD DIAMETER | 0.750 INCHES |
| AASA | THREAD LENGTH | 0.750 INCHES NOMINAL |
| AASL | HEAD DIAMETER | 0.875 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL OR ZINC OVERALL OR CHROMATE OVERALL |
| AAVQ | RIB LENGTH | 1.000 INCHES NOMINAL |
| CWYB | SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| AATN | SHOULDER DIAMETER | 0.835 INCHES MINIMUM FIRST SHOULDER AND 0.840 INCHES MAXIMUM FIRST SHOULDER |