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) | 01-031-2124 (010312124) |
| NCB Code | USA (01) |
| Manufacturer | Military Specifications, National Instruments Corporation, Huntington Ingalls Incorporated |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MIL-DTL-1222 | military specifications | nut plain hexagon | RFQ |
| MIL-S-1222 | military specifications | nut plain hexagon | RFQ |
| MIL-S-1222L1 | national instruments corporation | nut plain hexagon | RFQ |
| 6440-309 PIECE F121 | huntington ingalls incorporated | nut plain hexagon | RFQ |
| 6440-309 PIECE F121L1 | national instruments corporation | nut plain hexagon | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ACTA | NUT STYLE | HEXAGON |
| ADEA | NUT HEIGHT | 1.187 INCHES MINIMUM AND 1.251 INCHES MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 1.938 INCHES MINIMUM AND 2.000 INCHES MAXIMUM |
| BZRR | THREAD SERIES | UNC |
| CMLP | THREAD QUANTITY PER INCH | 7 |
| CQFM | HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 1.250 INCHES |
| CRTL | CRITICALITY CODE JUSTIFICATION | ZZZX |
| CRTM | BEARING SURFACE TYPE | WASHER FACED |
| MATT | MATERIAL | STEEL OVERALL |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 4 GRADE |
| ZZZX | DEPARTURE FROM CITED DESIGNATOR | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Relevant Components for NSN - 5310-01-031-2124, 5310010312124 | ||||
| 5355-00-582-7370 (5355005827370) | 5340-01-492-4288 (5340014924288) | 5340-00-523-3711 (5340005233711) | 5330-01-275-9444 (5330012759444) | |
| 5340-01-238-2053 (5340012382053) | 5365-01-693-2245 (5365016932245) | 5331-01-258-8240 (5331012588240) | 5365-01-672-1629 (5365016721629) | |
| 5365-01-432-4280 (5365014324280) | 5365-01-654-1906 (5365016541906) | 5340-01-451-0804 (5340014510804) | 5340-01-489-6012 (5340014896012) | |
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