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) | 01-440-4891 (014404891) |
| NCB Code | USA (01) |
| Manufacturer | Zf Industrieantriebe Witten Gmbh, Carver Pump Company |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 1 4 20UNC3A QQN 281D CL A OR B | zf industrieantriebe witten gmbh | screw cap socket head | RFQ |
| N-999-6064-B-001 ITEM NO. 44 | carver pump company | screw cap socket head | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | Head Style | FLAT CHAMFER |
| CQHQ | Minimum Yield Strength | 155000 POUNDS PER SQUARE INCH |
| AHYM | Nominal Thread Diameter | 0.250 INCHES |
| MRC | Decoded Requirement | Clear Text Reply |
| CQFM | Hardness Rating | 39.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| AASB | Fastener Length | 0.625 INCHES NOMINAL |
| ABQZ | Internal Drive Style | HEXAGON |
| AASL | Head Diameter | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| ASDB | Width Across Flats | 0.188 INCHES NOMINAL |
| CQBC | Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH |
| AAJF | Thread Direction | RIGHT-HAND |
| MDCL | Material Document And Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AASA | Thread Length | 0.525 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| THSD | Thread Series Designator | UNC |
| CMLP | Thread Quantity Per Inch | 20 |
| AAJD | Thread Class | 3A |
| MATT | Material | NICKEL ALLOY K-500 OVERALL |
| AASU | Head Height | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| Relevant Components for NSN - 5305-01-440-4891, 5305014404891 | ||||
| 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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