| 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 | ||||
| 4810-01-567-7671 (4810015677671) | 4820-00-811-2684 (4820008112684) | 4820-12-350-7803 (4820123507803) | 4810-01-606-1449 (4810016061449) | |
| 4820-01-235-1424 (4820012351424) | 4820-01-282-2547 (4820012822547) | 4820-00-936-3987 (4820009363987) | 4820-99-471-4151 (4820994714151) | |
| 4820-01-189-0797 (4820011890797) | 4820-01-123-0285 (4820011230285) | 4820-01-501-6459 (4820015016459) | 4810-00-719-6365 (4810007196365) | |
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