AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Nut Self Locking Hexagon |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-208-1920 (002081920) |
| NCB Code | USA (00) |
| Manufacturer | Aeronautical Standards Group, Military Specifications, Fitz Aerospace Llc, Harvard Industries Inc, Rockwell Collins Aerospace |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| AN365D420A | aeronautical standards group | nut self locking hexagon | RFQ |
| MILN25027 | military specifications | nut self locking hexagon | RFQ |
| 68E040 | fitz aerospace llc | nut self locking hexagon | RFQ |
| 68E040 | harvard industries inc | nut self locking hexagon | RFQ |
| 69NU040 | harvard industries inc | nut self locking hexagon | RFQ |
| 333-0430-000 | rockwell collins aerospace | nut self locking hexagon | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| ACTA | NUT STYLE | HEXAGON |
| ADEA | NUT HEIGHT | 0.312 INCHES MINIMUM AND 0.328 INCHES MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| AZKQ | TEMP RATING | 250.0 DEG FAHRENHEIT NOMINAL |
| BZRR | THREAD SERIES | UNC |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES |
| CRTM | BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| MATT | MATERIAL | ALUMINUM ALLOY NUT |
| MATT | MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| SFTT | SURFACE TREATMENT | ANODIZE OVERALL EXCEPT INSERT |
| Relevant Components for NSN - 5310-00-208-1920, 5310002081920 | ||||
| 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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