AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Nut Plain Assembled Washer |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-126-5753 (001265753) |
| NCB Code | USA (00) |
| Manufacturer | Military Standards Corp, Nimikkeistokeskus Ncb Finland, National Aerospace Standards Com, Federal Specifications, Harvard Industries Inc, Fitz Aerospace Llc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MS21244-4 | military standards corp | nut plain assembled washer | RFQ |
| 10116563 | nimikkeistokeskus ncb finland | nut plain assembled washer | RFQ |
| MS21244-4 | national aerospace standards com | nut plain assembled washer | RFQ |
| FF-N-836 | federal specifications | nut plain assembled washer | RFQ |
| 9770-4 | harvard industries inc | nut plain assembled washer | RFQ |
| 9770-4 | fitz aerospace llc | nut plain assembled washer | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAVX | WASHER OUTSIDE DIAMETER | 0.530 INCHES MINIMUM AND 0.560 INCHES MAXIMUM |
| AAWY | COUNTERBORE DIAMETER | 0.299 INCHES MINIMUM NUT AND 0.309 INCHES MAXIMUM NUT |
| ABKW | OVERALL HEIGHT | 0.365 INCHES MINIMUM AND 0.405 INCHES MAXIMUM |
| ACTA | NUT STYLE | FLAT WITH TURNED BACK EDGE |
| ADFK | NUT COUNTERBORE DEPTH | 0.172 INCHES MINIMUM NUT AND 0.192 INCHES MAXIMUM NUT |
| ASDB | WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| AZKQ | TEMP RATING | 450.0 DEG FAHRENHEIT MAXIMUM |
| BZRR | THREAD SERIES | UNJF |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES |
| CSXL | BEARING SURFACE FINISH | 125.0 MICROINCHES |
| MATT | MATERIAL | STEEL COMP 302 WASHER OR STEEL COMP 321 WASHER |
| MATT | MATERIAL | STEEL NUT |
| SFTT | SURFACE TREATMENT | CADMIUM NUT AND CHROMATE NUT |
| SFTT | SURFACE TREATMENT | PASSIVATE WASHER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE WASHER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | A GRADE |
| Relevant Components for NSN - 5310-00-126-5753, 5310001265753 | ||||
| 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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