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) | 00-978-9381 (009789381) |
| NCB Code | USA (00) |
| Manufacturer | Usi Inc, Lockheed Martin Corporation, Sypris Electronics Llc, General Dynamics Land Systems Inc, Northrop Grumman Systems Corporation, Military Standards Corp, Inspektorat Wsparcia Sil Zbrojnych, Eca Etablissement Central Des, Allen Mfg Co |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MS16997-63 | usi inc | screw cap socket head | RFQ |
| 4912852-04 | lockheed martin corporation | screw cap socket head | RFQ |
| 70072-508 | sypris electronics llc | screw cap socket head | RFQ |
| 10560246 | general dynamics land systems inc | screw cap socket head | RFQ |
| 517156 | northrop grumman systems corporation | screw cap socket head | RFQ |
| MS16997-63 | military standards corp | screw cap socket head | RFQ |
| 5305PL0652610 | inspektorat wsparcia sil zbrojnych | screw cap socket head | RFQ |
| 5305009789381 | eca etablissement central des | screw cap socket head | RFQ |
| 58-12180 | allen mfg co | screw cap socket head | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 1.101 INCHES MINIMUM AND 1.150 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.210 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ASDB | WIDTH ACROSS FLATS | 0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| CQHQ | MINIMUM YIELD STRENGTH | 130000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-00-978-9381, 5305009789381 | ||||
| 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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