| Item Name | Bolt Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-448-7450 (004487450) |
| NCB Code | USA (00) |
| Manufacturer | Alcoa Global Fasteners Inc, Huck International Inc, Arrow Electronics Inc, Valley Todeco Inc, Sps Technologies Inc, Sonic Industries Inc, Lockheed Martin Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| VS2986CR6-440 | alcoa global fasteners inc | bolt shoulder | RFQ |
| BM4356CR6-440 | huck international inc | bolt shoulder | RFQ |
| C4356CR-0440 | arrow electronics inc | bolt shoulder | RFQ |
| VCB0008C6-6-440 | valley todeco inc | bolt shoulder | RFQ |
| 71657CR6-6440 | sps technologies inc | bolt shoulder | RFQ |
| AIC4356CR6440 | sps technologies inc | bolt shoulder | RFQ |
| SII 1058CR6-440 | sonic industries inc | bolt shoulder | RFQ |
| PBF4356CR6-440 | sps technologies inc | bolt shoulder | RFQ |
| C4356CR6440 | lockheed martin corporation | bolt shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.261 INCHES MINIMUM AND 0.281 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.805 INCHES MINIMUM AND 0.825 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.3735 INCHES MINIMUM FIRST SHOULDER AND 0.3745 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.430 INCHES MINIMUM FIRST SHOULDER AND 0.450 INCHES MAXIMUM FIRST SHOULDER |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQBC | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 47.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.645 INCHES MINIMUM FIRST HOLE AND 0.665 INCHES MAXIMUM FIRST HOLE |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP H11 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OVERALL AND NAS 672 ASSN STD 1ST TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5306-00-448-7450, 5306004487450 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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