AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Bolt Ribbed Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-912-4342 (009124342) |
| NCB Code | USA (00) |
| Manufacturer | Zf Industrieantriebe Witten Gmbh, Nmc Wollard Inc, Meritor Heavy Vehicle Braking System, Axletech International Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 1.075 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.420 INCHES NOMINAL |
| AASK | HEAD STYLE | PAN NO. 2 |
| AASL | HEAD DIAMETER | 0.800 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.155 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.605 INCHES NOMINAL FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.345 INCHES NOMINAL FIRST SHOULDER |
| AAVP | RIB MAJOR DIAMETER | 0.620 INCHES NOMINAL |
| AAVQ | RIB LENGTH | 0.115 INCHES NOMINAL |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.115 INCHES NOMINAL |
| AAVT | RIB MINOR DIAMETER | 0.590 INCHES NOMINAL |
| AAVU | RIB QUANTITY | 40 |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CRKB | RIB INCLUDED ANGLE | 45.0 DEGREES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5306-00-912-4342, 5306009124342 | ||||
| 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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