| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-282-0493 (002820493) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.250 INCHES NOMINAL |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM |
| ABMK | OVERALL WIDTH | 1.000 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.025 INCHES MINIMUM AND 0.045 INCHES MAXIMUM |
| CSKN | EXTERNAL PREBENT KEY ANGLE | 60.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL COMP 1020 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Components Related to NSN - 5310-00-282-0493, 5310002820493 | ||||
| 5305-01-222-7769 (5305012227769) | 5365-01-044-5936 (5365010445936) | 5331-01-276-7349 (5331012767349) | 5340-00-536-5281 (5340005365281) | |
| 5365-00-550-5464 (5365005505464) | 5305-01-209-8688 (5305012098688) | 5340-01-624-2067 (5340016242067) | 5340-01-214-3681 (5340012143681) | |
| 5330-01-166-9520 (5330011669520) | 5306-00-528-5534 (5306005285534) | 5307-00-307-2340 (5307003072340) | 5340-01-382-3018 (5340013823018) | |
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