| Item Name | Washer Keyway |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-388-0811 (003880811) |
| NCB Code | USA (00) |
| Manufacturer | Marathon Electric Manufacturing |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.812 INCHES MINIMUM AND 0.817 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.838 INCHES MINIMUM AND 1.843 INCHES MAXIMUM |
| ABKZ | EXTERNAL KEYWAY LENGTH | 0.218 INCHES NOMINAL |
| ABLL | EXTERNAL KEYWAY WIDTH | 0.436 INCHES NOMINAL |
| ABMU | EXTERNAL KEYWAY QUANTITY | 1 |
| ABPX | MATERIAL THICKNESS | 0.0239 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | FORMED GROOVE AND NOTCH 180 DEGREES OPPOSIT KEYWAY |
| MATT | MATERIAL | STEEL OVERALL |
| Components Related to NSN - 5310-00-388-0811, 5310003880811 | ||||
| 5330-00-154-7423 (5330001547423) | 5365-01-326-1135 (5365013261135) | 5306-01-053-6961 (5306010536961) | 5310-00-523-2141 (5310005232141) | |
| 5325-01-240-1213 (5325012401213) | 5360-01-089-4004 (5360010894004) | 5330-01-089-6878 (5330010896878) | 5330-01-125-9042 (5330011259042) | |
| 5365-01-447-3568 (5365014473568) | 5340-00-967-7591 (5340009677591) | 5305-00-733-6616 (5305007336616) | 5310-01-278-4520 (5310012784520) | |
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