| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-551-7964 (005517964) |
| NCB Code | USA (00) |
| Manufacturer | Lockheed Martin Corporation, A And M Aerospace Inc, F P A Manufacturing |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.640 INCHES MINIMUM AND 0.647 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM |
| ABMD | RECESS DIAMETER | 0.927 INCHES MINIMUM AND 0.947 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.138 INCHES MINIMUM AND 0.148 INCHES MAXIMUM |
| CSTM | RECESS ANGLE | 94.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL COMP 8630 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6050 COND F4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | RECESSED |
| Components Related to NSN - 5310-00-551-7964, 5310005517964 | ||||
| 5340-01-169-2963 (5340011692963) | 5310-01-158-6265 (5310011586265) | 5315-01-608-8364 (5315016088364) | 5330-01-510-3005 (5330015103005) | |
| 5365-01-446-8973 (5365014468973) | 5340-01-487-3594 (5340014873594) | 5340-01-557-7739 (5340015577739) | 5331-00-625-8831 (5331006258831) | |
| 5306-01-648-2938 (5306016482938) | 5307-01-106-3946 (5307011063946) | 5305-00-050-9241 (5305000509241) | 5360-01-598-3689 (5360015983689) | |
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