AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Bolt Ribbed Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 01-421-3186 (014213186) |
| NCB Code | USA (01) |
| Manufacturer | Webb Wheel Products Inc, Caterpillar Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AHYM | Nominal Thread Diameter | 22.0 MILLIMETERS |
| AASL | Head Diameter | 33.27 MILLIMETERS NOMINAL |
| CQWR | External Thread Tolerance Class | 6G |
| AATX | Shoulder Length | 18.3 MILLIMETERS NOMINAL FIRST SHOULDER |
| AASK | Head Style | FLAT CHAMFER |
| CWYB | Shoulder Shape | ROUND FIRST SHOULDER |
| THSD | Thread Series Designator | M |
| AASB | Fastener Length | 88.9 MILLIMETERS NOMINAL |
| AATN | Shoulder Diameter | 25.58 MILLIMETERS NOMINAL FIRST SHOULDER |
| CMLP | Thread Quantity Per Inch | 1.5 |
| MRC | Decoded Requirement | Clear Text Reply |
| AASA | Thread Length | 57.2 MILLIMETERS NOMINAL |
| Relevant Components for NSN - 5306-01-421-3186, 5306014213186 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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