AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-306-7880 (013067880) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com, Military Standards Corp, Head Italia Srl |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NASM14183 | national aerospace standards com | washer recessed | RFQ |
| MS14183C8 | military standards corp | washer recessed | RFQ |
| MS14183L-C8 | military standards corp | washer recessed | RFQ |
| MS14183L-C8 | head italia srl | washer recessed | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.501 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.922 INCHES MINIMUM AND 0.932 INCHES MAXIMUM |
| ABNM | THICKNESS | 0.071 INCHES MINIMUM AND 0.085 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| FEAT | SPECIAL FEATURES | RECESS DIAMETER: 0.614 IN. MIN. AND 0.624 IN. MAX.;RECESS ANGLE: 90.0 DEG. NOM.;STYLE DESIGNATOR: RECESSED |
| MATT | MATERIAL | NICKEL ALLOY 718 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5596 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5597 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Relevant Components for NSN - 5310-01-306-7880, 5310013067880 | ||||
| 5305-00-825-1285 (5305008251285) | 5315-01-177-1845 (5315011771845) | 5340-01-536-0624 (5340015360624) | 5330-01-398-3824 (5330013983824) | |
| 5365-00-602-2520 (5365006022520) | 5340-01-658-6711 (5340016586711) | 5306-00-488-7520 (5306004887520) | 5310-00-443-4905 (5310004434905) | |
| 5305-00-579-4230 (5305005794230) | 5306-01-488-3599 (5306014883599) | 5340-01-429-0378 (5340014290378) | 5305-01-208-9074 (5305012089074) | |
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