AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Assembled Washer |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-445-5103 (014455103) |
| NCB Code | USA (01) |
| Manufacturer | Young Touchstone Company, General Dynamics Land Systems Inc, Allied Defense Industries Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| CTHW | Primary Washer Style | COUNTERSINK EXTERNAL TEETH |
| AASK | Head Style | HEXAGON EXTENDED WASHER |
| CSPG | Primary Washer Outside Diameter | 0.513 INCHES MINIMUM AND 0.531 INCHES MAXIMUM |
| AHYM | Nominal Thread Diameter | 0.250 INCHES |
| AATB | Width Between Flats | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AAJF | Thread Direction | RIGHT-HAND |
| MATT | Material | STEEL OVERALL |
| THSD | Thread Series Designator | UNC |
| MRC | Decoded Requirement | Clear Text Reply |
| AAJD | Thread Class | 2A |
| CMLP | Thread Quantity Per Inch | 20 |
| AASU | Head Height | 0.216 INCHES MINIMUM AND 0.240 INCHES MAXIMUM |
| SFTT | Surface Treatment | ZINC OVERALL |
| AAVW | Washer Quantity | 1 |
| AASB | Fastener Length | 0.470 INCHES MINIMUM AND 0.520 INCHES MAXIMUM |
| Relevant Components for NSN - 5305-01-445-5103, 5305014455103 | ||||
| 5340-01-131-8536 (5340011318536) | 5306-01-438-9363 (5306014389363) | 5306-00-839-1951 (5306008391951) | 5330-00-854-3797 (5330008543797) | |
| 5330-99-729-7553 (5330997297553) | 5306-01-710-7805 (5306017107805) | 5310-01-125-4124 (5310011254124) | 5315-01-514-6048 (5315015146048) | |
| 5306-00-009-5138 (5306000095138) | 5340-01-575-9010 (5340015759010) | 5305-00-130-4358 (5305001304358) | 5310-01-513-5337 (5310015135337) | |
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