AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-400-2769 (014002769) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NAS1581K3T4 | national aerospace standards com | screw close tolerance | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ANEE | Grip Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| AHYM | Nominal Thread Diameter | 0.190 INCHES |
| AASK | Head Style | FLAT COUNTERSUNK |
| MRC | Decoded Requirement | Clear Text Reply |
| MATT | Material | TITANIUM ALLOY UNS R56400 OVERALL |
| AASB | Fastener Length | 0.598 INCHES MINIMUM AND 0.628 INCHES MAXIMUM |
| AASL | Head Diameter | 0.257 INCHES MINIMUM AND 0.304 INCHES MAXIMUM |
| CQBC | Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH |
| AASA | Thread Length | 0.363 INCHES NOMINAL |
| ABQZ | Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| THSD | Thread Series Designator | UNJF |
| AAJF | Thread Direction | RIGHT-HAND |
| AAUR | Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| CMLP | Thread Quantity Per Inch | 3A |
| CRSQ | Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| ZZZK | Specification/Standard Data | 80205-NAS1581 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| MDCL | Material Document And Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AAJD | Thread Class | 3A |
| Relevant Components for NSN - 5305-01-400-2769, 5305014002769 | ||||
| 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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