| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-572-3897 (015723897) |
| NCB Code | USA (01) |
| Manufacturer | Mil Cots Corporation, Fastenal Company, Oshkosh Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| CXCY | III PART NAME ASSIGNED BY CONTROLLING AGENCY | 1/4 SAE FLAT WASHER |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| ADAV | OVERALL DIAMETER | 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.276 INCHES MINIMUM AND 0.296 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633, SC1. TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ABNM | THICKNESS | 0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | MATERIAL CARBON STEEL |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| HUES | COLOR | YELLOW OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL |
| AGAV | III END ITEM IDENTIFICATION | MRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS |
| Components Related to NSN - 5310-01-572-3897, 5310015723897 | ||||
| 5340-01-169-2963 (5340011692963) | 5310-01-158-6265 (5310011586265) | 5315-01-608-8364 (5315016088364) | 5330-01-510-3005 (5330015103005) | |
| 5365-01-446-8973 (5365014468973) | 5340-01-487-3594 (5340014873594) | 5340-01-557-7739 (5340015577739) | 5331-00-625-8831 (5331006258831) | |
| 5306-01-648-2938 (5306016482938) | 5307-01-106-3946 (5307011063946) | 5305-00-050-9241 (5305000509241) | 5360-01-598-3689 (5360015983689) | |
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