| Item Name | Washer Concave |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-182-4101 (001824101) |
| NCB Code | USA (00) |
| Manufacturer | Harvard Industries Inc, Sps Technologies Inc, Lockheed Martin Corporation |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 55-2935-04 | harvard industries inc | washer concave | 72962 | RFQ |
| 68563W-08 | sps technologies inc | washer concave | 56878 | RFQ |
| STSCA001B08 | lockheed martin corporation | washer concave | 98897 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.315 INCHES MINIMUM AND 0.345 INCHES MAXIMUM |
| ABGG | RADIUS | 0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.464 INCHES MINIMUM AND 0.474 INCHES MAXIMUM |
| ABMD | RECESS DIAMETER | 0.265 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.058 INCHES MINIMUM AND 0.088 INCHES MAXIMUM |
| HEAT | HEAT TREATMENT | AS FABRICATED |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | CONCAVE |
| Relevant Components for NSN - 5310-00-182-4101, 5310001824101 | ||||
| 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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