| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-531-0844 (005310844) |
| NCB Code | USA (00) |
| Manufacturer | Army United States Department Of The |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| AAUB | HOLE DIAMETER | 2.031 INCHES NOMINAL |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ABNM | THICKNESS | 0.125 INCHES NOMINAL |
| ADAV | OVERALL DIAMETER | 2.875 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | 0.031 IN. MIN RUBBER COATING,SPEC MIL-R-3065,CLASS SC-512ABF |
| MATT | MATERIAL | WOOL COMP 12R2 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | C-F-206,TYPE 1,CL 12R2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Relevant Components for NSN - 5310-00-531-0844, 5310005310844 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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