| Item Name | Nut Self Locking Castellated Hex |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-481-3310 (014813310) |
| NCB Code | USA (01) |
| Manufacturer | Dresser Industries Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| CRTM | Bearing Surface Type | ANY ACCEPTABLE |
| CQJX | Nominal Thread Size | 0.875 INCHES |
| SFTT | Surface Treatment | CADMIUM OVERALL |
| MATT | Material | STEEL OVERALL |
| MRC | Decoded Requirement | Clear Text Reply |
| AAJF | Thread Direction | RIGHT-HAND |
| AAJD | Thread Class | 2B |
| ACTA | Nut Style | CASTELLATED, HEXAGON |
| BZRR | Thread Series | UNC |
| AAUM | Locking Feature | PREVAILING TORQUE WITH METALLIC INSERT |
| ADEA | Nut Height | 0.891 INCHES NOMINAL |
| ASDB | Width Across Flats | 1.312 INCHES NOMINAL |
| CMLP | Thread Quantity Per Inch | 8 |
| Relevant Components for NSN - 5310-01-481-3310, 5310014813310 | ||||
| 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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