| 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) | 00-558-8548 (005588548) |
| NCB Code | USA (00) |
| Manufacturer | Fitz Aerospace Llc, Harvard Industries Inc, Navair And Navsea Managed, Essex Industries Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 21TU040 | fitz aerospace llc | nut self locking hexagon | 019l2 | RFQ |
| 21TU040 | harvard industries inc | nut self locking hexagon | 72962 | RFQ |
| 734679PC15 | navair and navsea managed | nut self locking hexagon | 10001 | RFQ |
| X101-8 | essex industries inc | nut self locking hexagon | 55469 | 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 | 0.281 INCHES NOMINAL |
| ASDB | WIDTH ACROSS FLATS | 0.566 INCHES NOMINAL |
| BZRR | THREAD SERIES | UNC |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES |
| CRTM | BEARING SURFACE TYPE | FLAT |
| MATT | MATERIAL | FIBER LOCKING INSERT |
| MATT | MATERIAL | STEEL NUT |
| SFTT | SURFACE TREATMENT | ZINC NUT |
| Components Related to NSN - 5310-00-558-8548, 5310005588548 | ||||
| 5310-01-197-4020 (5310011974020) | 5315-01-603-3457 (5315016033457) | 5307-00-208-2583 (5307002082583) | 5306-00-723-0855 (5306007230855) | |
| 5306-01-051-8024 (5306010518024) | 5365-00-997-7495 (5365009977495) | 5360-00-769-7461 (5360007697461) | 5360-01-313-5636 (5360013135636) | |
| 5330-01-455-6923 (5330014556923) | 5340-00-061-1146 (5340000611146) | 5320-00-333-6513 (5320003336513) | 5310-01-109-8086 (5310011098086) | |
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