AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Bolt Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-092-7339 (000927339) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Huck International Inc, Valley Todeco Inc, Sps Technologies Inc, Alcoa Global Fasteners Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| GB511BY4M3 | northrop grumman systems corporation | bolt close tolerance | RFQ |
| BM15016-4-3 | huck international inc | bolt close tolerance | RFQ |
| VEH160271-4M3 | valley todeco inc | bolt close tolerance | RFQ |
| 110185-4-3M | sps technologies inc | bolt close tolerance | RFQ |
| BM15016-4-3A | huck international inc | bolt close tolerance | RFQ |
| GB511BY4M3 | alcoa global fasteners inc | bolt close tolerance | RFQ |
| GB511BY4M3 | sps technologies inc | bolt close tolerance | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.598 INCHES MINIMUM AND 0.628 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ANEE | GRIP LENGTH | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CSYM | SURFACE FINISH | 16.0 MICROINCHES THREADS |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES GRIP |
| FEAT | SPECIAL FEATURES | LUBRICANT MOLY-DISULFIDE |
| MATT | MATERIAL | TITANIUM ALLOY OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR NAS 621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| ZZZK | SPECIFICATION/STANDARD DATA | 26512-GB511BY4-3 MANUFACTURERS STANDARD |
| Relevant Components for NSN - 5306-00-092-7339, 5306000927339 | ||||
| 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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