| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-891-6011 (008916011) |
| NCB Code | USA (00) |
| Manufacturer | United Technologies Corporation, Alinabal Holdings Corporation, Paradigm Manchester Inc, Dynamic Gunver Technologies Llc, Royal Oak Gage Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 563221 | united technologies corporation | washer recessed | 77445 | RFQ |
| 563221 | alinabal holdings corporation | washer recessed | 31633 | RFQ |
| 563221 | paradigm manchester inc | washer recessed | 1j4p3 | RFQ |
| 563221 | dynamic gunver technologies llc | washer recessed | 59420 | RFQ |
| 563221 | royal oak gage inc | washer recessed | 00088 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.313 INCHES MINIMUM AND 0.319 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| ABMH | RECESS DEPTH | 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM |
| CSTM | RECESS ANGLE | 90.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL COMP 321 OVERALL |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES BOTTOM |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES TOP |
| STYL | STYLE DESIGNATOR | RECESSED BOTH SIDES |
| Relevant Components for NSN - 5310-00-891-6011, 5310008916011 | ||||
| 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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