| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-931-2186 (009312186) |
| NCB Code | USA (00) |
| Manufacturer | Velan Valve Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 0.996 INCHES MINIMUM AND 0.998 INCHES MAXIMUM |
| ADAR | BODY OUTSIDE DIAMETER | 0.870 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.312 NOMINAL INCHES |
| AJRM | UNDER FLANGE HEIGHT | 0.281 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 36.000 NOMINAL |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.343 NOMINAL INCHES FIRST STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.688 NOMINAL INCHES SECOND STEP |
| MATT | MATERIAL | COBALT ALLOY FACE |
| MATT | MATERIAL | STEEL COMP 416 BODY |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| Components Related to NSN - 4820-00-931-2186, 4820009312186 | ||||
| 4810-01-278-5440 (4810012785440) | 4820-01-192-4196 (4820011924196) | 4820-00-965-8381 (4820009658381) | 4820-01-003-7863 (4820010037863) | |
| 4820-01-216-1156 (4820012161156) | 4820-01-357-3650 (4820013573650) | 4820-01-178-4887 (4820011784887) | 4810-01-057-7341 (4810010577341) | |
| 4820-01-367-9897 (4820013679897) | 4820-01-133-9054 (4820011339054) | 4820-01-383-5396 (4820013835396) | 4820-01-351-5405 (4820013515405) | |
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