| Item Name | Washer Keyway |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-342-0442 (003420442) |
| NCB Code | USA (00) |
| Manufacturer | Hamilton Sundstrand Corporation, United Technologies Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.324 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM |
| ABLM | INTERNAL KEYWAY WIDTH | 0.080 INCHES NOMINAL |
| ABLR | DISTANCE FROM CENTERLINE TO BOTTOM OF INTERNAL KEYWAY | 0.223 INCHES NOMINAL |
| ABMV | INTERNAL KEYWAY QUANTITY | 1 |
| ABPX | MATERIAL THICKNESS | 0.050 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 303 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Components Related to NSN - 5310-00-342-0442, 5310003420442 | ||||
| 5330-00-038-4345 (5330000384345) | 5305-01-191-2462 (5305011912462) | 5365-00-898-3506 (5365008983506) | 5315-01-424-1290 (5315014241290) | |
| 5330-01-696-0897 (5330016960897) | 5330-01-561-7601 (5330015617601) | 5342-00-408-9183 (5342004089183) | 5310-00-981-2299 (5310009812299) | |
| 5340-01-523-8925 (5340015238925) | 5342-01-649-3882 (5342016493882) | 5310-00-943-5411 (5310009435411) | 5340-01-569-9497 (5340015699497) | |
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