AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Nut Plain Castellated Hexagon |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-176-8091 (001768091) |
| NCB Code | USA (00) |
| Manufacturer | Federal Specifications, Department Of The Air Force |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| FFB571TYPEA4 | federal specifications | nut plain castellated hexagon | RFQ |
| 330-20 | department of the air force | nut plain castellated hexagon | RFQ |
| USAF330-20 | department of the air force | nut plain castellated hexagon | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ACTA | NUT STYLE | CASTELLATED,HEXAGON |
| ADEA | NUT HEIGHT | 1.272 INCHES NOMINAL |
| ASDB | WIDTH ACROSS FLATS | 1.875 INCHES NOMINAL |
| BZRR | THREAD SERIES | UNF |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| CQJX | NOMINAL THREAD SIZE | 1.250 INCHES |
| CRTM | BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND ZINC OVERALL |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | A4 TYPE |
| Relevant Components for NSN - 5310-00-176-8091, 5310001768091 | ||||
| 5305-01-642-0405 (5305016420405) | 5340-01-469-1045 (5340014691045) | 5315-01-562-5736 (5315015625736) | 5315-01-575-7397 (5315015757397) | |
| 5310-00-347-0214 (5310003470214) | 5320-01-073-2961 (5320010732961) | 5342-01-117-9590 (5342011179590) | 5355-00-201-5369 (5355002015369) | |
| 5305-01-321-3806 (5305013213806) | 5330-00-256-6918 (5330002566918) | 5365-01-625-0045 (5365016250045) | 5310-01-593-4780 (5310015934780) | |
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