AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-807-6439 (008076439) |
| NCB Code | USA (00) |
| Manufacturer | Westport International Inc, United Technologies Corporation, Unison Industries Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASB | FASTENER LENGTH | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| AASK | HEAD STYLE | DOUBLE CHAMFER |
| AASU | HEAD HEIGHT | 0.122 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| AAUK | SPLINE WIDTH | 0.023 INCHES MINIMUM AND 0.025 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 40 |
| CQBC | MINIMUM TENSILE STRENGTH | 115000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL COMP 4037 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.128 INCHES MINIMUM AND 0.178 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM |
| AAUH | SPLINE MINOR DIAMETER | 0.096 INCHES MINIMUM AND 0.098 INCHES MAXIMUM |
| AAUJ | SPLINE MAJOR DIAMETER | 0.113 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | SIX SPLINE |
| AHYM | NOMINAL THREAD DIAMETER | 0.125 INCHES |
| CQFM | HARDNESS RATING | 98.0 ROCKWELL C NOMINAL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6300 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| Relevant Components for NSN - 5305-00-807-6439, 5305008076439 | ||||
| 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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