| Item Name | Washer Lock |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-054-3328 (000543328) |
| NCB Code | USA (00) |
| Manufacturer | Itw Shakeproof Automotive Products, Federal Specifications, Zf Industrieantriebe Witten Gmbh, General Electric Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.494 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 89.0 ROCKWELL B MINIMUM AND 94.0 ROCKWELL B MAXIMUM |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| SFTT | SURFACE TREATMENT | NICKEL OVERALL |
| STYL | STYLE DESIGNATOR | FLAT EXTERNAL TEETH |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 2 STYLE |
| ZZZX | DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY MATERIAL COMPOSITION AND FINISH |
| Components Related to NSN - 5310-00-054-3328, 5310000543328 | ||||
| 5310-01-086-7875 (5310010867875) | 5306-01-626-1829 (5306016261829) | 5365-01-633-9077 (5365016339077) | 5355-00-870-0653 (5355008700653) | |
| 5330-00-143-3535 (5330001433535) | 5330-00-631-8220 (5330006318220) | 5305-01-696-3523 (5305016963523) | 5305-01-275-0515 (5305012750515) | |
| 5331-01-398-8586 (5331013988586) | 5325-01-608-8422 (5325016088422) | 5306-01-646-1547 (5306016461547) | 5360-01-651-5511 (5360016515511) | |
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