AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Nut Plain Hexagon |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-494-2731 (014942731) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com, Aeronautical Standards Group |
| MRC | Criteria | Characteristic |
|---|---|---|
| CRTM | Bearing Surface Type | CHAMFERED |
| CQJX | Nominal Thread Size | 0.250 INCHES |
| AGAV | End Item Identification | HELICOPTER OBSERVATION, OH-58D, 1520-01-125-5476 |
| AAJF | Thread Direction | RIGHT-HAND |
| MRC | Decoded Requirement | Clear Text Reply |
| SFTT | Surface Treatment | CADMIUM OVERALL AND CHROMATE OVERALL |
| MATT | Material | STEEL OVERALL |
| AAJD | Thread Class | 3B |
| BZRR | Thread Series | UNF |
| ACTA | Nut Style | HEXAGON |
| STDC | Surface Treatment Document And Classification | QQ-P-416,TY II FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| ADEA | Nut Height | 0.188 INCHES NOMINAL |
| ASDB | Width Across Flats | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| CMLP | Thread Quantity Per Inch | 28 |
| Relevant Components for NSN - 5310-01-494-2731, 5310014942731 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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