| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-375-2871 (013752871) |
| NCB Code | USA (01) |
| Manufacturer | Federal Specifications |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7952 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| ABNM | THICKNESS | 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| AAUB | HOLE DIAMETER | 0.630 INCHES MINIMUM AND 0.650 INCHES MAXIMUM |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ADAV | OVERALL DIAMETER | 1.183 INCHES MINIMUM AND 1.208 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 1020 OVERALL AND STEEL COMP 1025 OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL AND CHROMATE OVERALL |
| Relevant Components for NSN - 5310-01-375-2871, 5310013752871 | ||||
| 5330-01-701-4089 (5330017014089) | 5305-01-213-9722 (5305012139722) | 5320-01-460-5665 (5320014605665) | 5306-01-475-3608 (5306014753608) | |
| 5306-01-626-6230 (5306016266230) | 5306-00-292-8749 (5306002928749) | 5342-01-673-3505 (5342016733505) | 5330-01-283-1784 (5330012831784) | |
| 5365-01-228-1431 (5365012281431) | 5365-00-466-3750 (5365004663750) | 5310-00-595-7616 (5310005957616) | 5305-00-550-0140 (5305005500140) | |
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