AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| 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 |
| Relevant Components for NSN - 5310-00-388-0811, 5310003880811 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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