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) | 00-449-2250 (004492250) |
| NCB Code | USA (00) |
| Manufacturer | General Signal Corp, Eaton Aerospace Ltd |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.250 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 0.375 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.046 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| ASDB | WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM |
| ASXK | HOLE QUANTITY | 4 |
| BQDM | HOLE TYPE | DRILLED |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CRHC | HOLE CONFIGURATION STYLE | ROUND |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-00-449-2250, 5305004492250 | ||||
| 5330-01-032-3160 (5330010323160) | 5360-00-039-5719 (5360000395719) | 5340-01-502-8424 (5340015028424) | 5305-01-377-4366 (5305013774366) | |
| 5365-01-067-7692 (5365010677692) | 5330-14-454-7377 (5330144547377) | 5365-01-124-6460 (5365011246460) | 5305-01-466-5966 (5305014665966) | |
| 5342-01-514-2585 (5342015142585) | 5365-01-617-4818 (5365016174818) | 5340-01-361-1313 (5340013611313) | 5310-01-276-6703 (5310012766703) | |
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