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) | 01-366-1889 (013661889) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NAS1351-4LE8P | national aerospace standards com | screw cap socket head | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| AAJD | THREAD CLASS | 3A |
| AASA | THREAD LENGTH | 0.500 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 0.500 INCHES NOMINAL |
| AASL | HEAD DIAMETER | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AGAV | END ITEM IDENTIFICATION | MULTIPLE LAUNCH ROCKET SYSTEM (MLRS) |
| ASDB | WIDTH ACROSS FLATS | 0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNRF |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASU | HEAD HEIGHT | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM AND OXIDE FILM OVERALL |
| Relevant Components for NSN - 5305-01-366-1889, 5305013661889 | ||||
| 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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