AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Bolt Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 01-057-3734 (010573734) |
| NCB Code | USA (01) |
| Manufacturer | Lockheed Martin Corporation, United Technologies Corporation, Refa International Inc, Mercer Products And Manufacturing |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 1283013-103 | lockheed martin corporation | bolt shoulder | RFQ |
| ATT411-8S | united technologies corporation | bolt shoulder | RFQ |
| 1283013-103 | refa international inc | bolt shoulder | RFQ |
| 1833013-103 | mercer products and manufacturing | bolt shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.640 INCHES MINIMUM AND 0.730 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.915 INCHES MINIMUM AND 1.955 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.743 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.4992 INCHES MINIMUM FIRST SHOULDER AND 0.4994 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.295 INCHES MINIMUM FIRST SHOULDER AND 1.305 INCHES MAXIMUM FIRST SHOULDER |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.108 INCHES MINIMUM FIRST HOLE AND 0.113 INCHES MAXIMUM FIRST HOLE |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQBC | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.667 INCHES MINIMUM FIRST HOLE AND 1.687 INCHES MAXIMUM FIRST HOLE |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5306-01-057-3734, 5306010573734 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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