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) | 00-679-8109 (006798109) |
| NCB Code | USA (00) |
| Manufacturer | Allison Transmission Inc, Cnh Industrial America Llc, General Motors Corp |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 6755988 | allison transmission inc | bolt ribbed shoulder | RFQ |
| A12695 | cnh industrial america llc | bolt ribbed shoulder | RFQ |
| N8231 | cnh industrial america llc | bolt ribbed shoulder | RFQ |
| 6755988 | general motors corp | bolt ribbed shoulder | RFQ |
| 23014542 | allison transmission inc | bolt ribbed shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.830 INCHES MINIMUM AND 0.860 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.270 INCHES MINIMUM AND 1.300 INCHES MAXIMUM |
| AASK | HEAD STYLE | DEE |
| AASL | HEAD DIAMETER | 0.624 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.188 INCHES NOMINAL |
| AASY | DISTANCE FROM CENTERLINE TO FLAT | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.303 INCHES MINIMUM FIRST SHOULDER AND 0.307 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.320 INCHES NOMINAL FIRST SHOULDER |
| AAVP | RIB MAJOR DIAMETER | 0.317 INCHES MINIMUM AND 0.321 INCHES MAXIMUM |
| AAVQ | RIB LENGTH | 0.260 INCHES NOMINAL |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.030 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| AAVT | RIB MINOR DIAMETER | 0.303 INCHES MINIMUM AND 0.307 INCHES MAXIMUM |
| AAVU | RIB QUANTITY | 33 |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 36.0 ROCKWELL C MAXIMUM OVERALL |
| CWYB | SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP 1335 OVERALL OR STEEL COMP 1541 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5306-00-679-8109, 5306006798109 | ||||
| 5305-01-642-0405 (5305016420405) | 5340-01-469-1045 (5340014691045) | 5315-01-562-5736 (5315015625736) | 5315-01-575-7397 (5315015757397) | |
| 5310-00-347-0214 (5310003470214) | 5320-01-073-2961 (5320010732961) | 5342-01-117-9590 (5342011179590) | 5355-00-201-5369 (5355002015369) | |
| 5305-01-321-3806 (5305013213806) | 5330-00-256-6918 (5330002566918) | 5365-01-625-0045 (5365016250045) | 5310-01-593-4780 (5310015934780) | |
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