AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-639-4037 (006394037) |
| NCB Code | USA (00) |
| Manufacturer | Power Components (Deutschland) Gmbh, Zf Industrieantriebe Witten Gmbh, H20 Tank Inc, Mtu America Inc, General Motors Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.506 INCHES MINIMUM AND 0.526 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.1544 INCHES MINIMUM AND 0.1744 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| CSKN | EXTERNAL PREBENT KEY ANGLE | 45.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-00-639-4037, 5310006394037 | ||||
| 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) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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