| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-702-1298 (007021298) |
| NCB Code | USA (00) |
| Manufacturer | Defense Logistics Agency, Lockheed Martin Corporation, Inspektorat Wsparcia Sil Zbrojnych |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.890 INCHES MINIMUM AND 0.901 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.420 INCHES MINIMUM AND 1.440 INCHES MAXIMUM |
| ABMD | RECESS DIAMETER | 1.020 INCHES MINIMUM AND 1.040 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.183 INCHES MINIMUM AND 0.197 INCHES MAXIMUM |
| CSTM | RECESS ANGLE | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| 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 - 5310-00-702-1298, 5310007021298 | ||||
| 5340-01-301-6428 (5340013016428) | 5315-01-359-8766 (5315013598766) | 5330-01-647-7723 (5330016477723) | 5330-00-883-3709 (5330008833709) | |
| 5330-01-632-1994 (5330016321994) | 5330-01-209-0521 (5330012090521) | 5306-00-687-6359 (5306006876359) | 5331-01-699-1752 (5331016991752) | |
| 5340-00-337-5707 (5340003375707) | 5340-00-427-0270 (5340004270270) | 5342-00-467-6645 (5342004676645) | 5340-01-227-0536 (5340012270536) | |
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