AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Drive |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-253-5633 (002535633) |
| NCB Code | USA (00) |
| Manufacturer | Zf Industrieantriebe Witten Gmbh, National Aerospace Standards Com, Military Standards Corp |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MS 21318-59 | zf industrieantriebe witten gmbh | screw drive | RFQ |
| MS21318-59 | national aerospace standards com | screw drive | RFQ |
| MS21318-59 | military standards corp | screw drive | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASB | FASTENER LENGTH | 0.750 INCHES NOMINAL |
| AASK | HEAD STYLE | ROUND |
| AASL | HEAD DIAMETER | 0.429 INCHES MINIMUM AND 0.457 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| AAVL | PILOT DIAMETER | 0.198 INCHES MINIMUM AND 0.202 INCHES MAXIMUM |
| AAVM | PILOT LENGTH | 0.078 INCHES NOMINAL |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| CRGF | NONMACHINE THREAD STYLE | DRIVE SCREW (TYPE U) |
| CTYF | NONMACHINE NOMINAL THREAD DIAMETER | 0.239 INCHES |
| 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 |
| Relevant Components for NSN - 5305-00-253-5633, 5305002535633 | ||||
| 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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