| 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 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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