AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-071-8143 (010718143) |
| NCB Code | USA (01) |
| Manufacturer | Zf Industrieantriebe Witten Gmbh, Telemechanics Inc, American Telephone And Telegraph Co |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.156 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 0.297 INCHES NOMINAL |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.078 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.312 INCHES NOMINAL FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.141 INCHES NOMINAL FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| AHYM | NOMINAL THREAD DIAMETER | 0.164 INCHES |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-01-071-8143, 5305010718143 | ||||
| 5305-00-825-1285 (5305008251285) | 5315-01-177-1845 (5315011771845) | 5340-01-536-0624 (5340015360624) | 5330-01-398-3824 (5330013983824) | |
| 5365-00-602-2520 (5365006022520) | 5340-01-658-6711 (5340016586711) | 5306-00-488-7520 (5306004887520) | 5310-00-443-4905 (5310004434905) | |
| 5305-00-579-4230 (5305005794230) | 5306-01-488-3599 (5306014883599) | 5340-01-429-0378 (5340014290378) | 5305-01-208-9074 (5305012089074) | |
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