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) | 01-159-5731 (011595731) |
| NCB Code | USA (01) |
| Manufacturer | Huck International Inc, Sps Technologies Inc, Valley Todeco Inc, The Boeing Company, Federal Mfg Co Inc, Alcoa Global Fasteners Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| BACB30LJ4021 | huck international inc | bolt close tolerance | RFQ |
| BACB30LJ4D21 | sps technologies inc | bolt close tolerance | RFQ |
| BACB30LJ4D21 | valley todeco inc | bolt close tolerance | RFQ |
| BACB30LJ4D21 | the boeing company | bolt close tolerance | RFQ |
| BACB30LJ4D21 | federal mfg co inc | bolt close tolerance | RFQ |
| BACB30LJ4D21 | alcoa global fasteners inc | bolt close tolerance | RFQ |
| BACB30LJ4021 | the boeing company | bolt close tolerance | RFQ |
| BACB30LJ4D21 | huck international inc | bolt close tolerance | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.364 INCHES MINIMUM AND 0.414 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.686 INCHES MINIMUM AND 1.716 INCHES MAXIMUM |
| AASK | HEAD STYLE | UNDERCUT 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 | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL FIRST HOLE |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ANEE | GRIP LENGTH | 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.560 INCHES MINIMUM FIRST HOLE AND 1.610 INCHES MAXIMUM FIRST HOLE |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
| MATT | MATERIAL | IRON ALLOY 660 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2,CL 2 FED SPEC 1ST TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| ZZZK | SPECIFICATION/STANDARD DATA | 81205-BACB30LJ MANUFACTURERS STANDARD |
| Relevant Components for NSN - 5306-01-159-5731, 5306011595731 | ||||
| 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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