AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-180-5975 (011805975) |
| NCB Code | USA (01) |
| Manufacturer | Raytheon Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| AAUB | HOLE DIAMETER | 0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ABNM | THICKNESS | 0.085 INCHES NOMINAL |
| ADAV | OVERALL DIAMETER | 0.458 INCHES MINIMUM AND 0.468 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 55.0 ROCKWELL C MINIMUM AND 59.0 ROCKWELL C MAXIMUM |
| CQZT | OUTSIDE LEFT CORNER CHAMFER ANGLE | 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM |
| CRFT | OUTSIDE RIGHT CORNER CHAMFER ANGLE | 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES ALL SURFACES |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 COND A,440C FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Relevant Components for NSN - 5310-01-180-5975, 5310011805975 | ||||
| 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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