AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Machine |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-638-9987 (006389987) |
| NCB Code | USA (00) |
| Manufacturer | National Aerospace Standards Com, Aeronautical Standards Group |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MILS7839 | national aerospace standards com | screw machine | RFQ |
| AN509C416-14 | aeronautical standards group | screw machine | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| CYBA | Screw Surface Treatment | PASSIVATE |
| AASK | Head Style | FLAT COUNTERSUNK |
| THSD | Thread Series Designator | UNF |
| ABQZ | Internal Drive Style | SLOT |
| AHYM | Nominal Thread Diameter | 0.250 INCHES |
| AASB | Fastener Length | 0.890 INCHES MINIMUM AND 0.937 INCHES MAXIMUM |
| CRSQ | Countersink Angle | 100.0 DEGREES NOMINAL |
| CQBC | Minimum Tensile Strength | 85000 POUNDS PER SQUARE INCH |
| CYAU | Screw Material | STEEL CORROSION RESISTING |
| AASL | Head Diameter | 0.491 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| AASA | Thread Length | 0.531 INCHES MINIMUM |
| AAJF | Thread Direction | RIGHT-HAND |
| CMLP | Thread Quantity Per Inch | 28 |
| MRC | Decoded Requirement | Clear Text Reply |
| AAJD | Thread Class | 3A |
| Relevant Components for NSN - 5305-00-638-9987, 5305006389987 | ||||
| 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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