| Item Name | Disk Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-218-6054 (002186054) |
| NCB Code | USA (00) |
| Manufacturer | Westinghouse Electric Corp, Northrop Grumman Systems Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| D15-631BPC644-674-972 | westinghouse electric corp | disk valve | RFQ |
| D15-631PPC644-674-972 | westinghouse electric corp | disk valve | RFQ |
| 8835 | westinghouse electric corp | disk valve | RFQ |
| D15-631JPC643-644-666-674-972 | westinghouse electric corp | disk valve | RFQ |
| D15-631JPC644-674-972 | westinghouse electric corp | disk valve | RFQ |
| D15-631QPC644-674-972 | westinghouse electric corp | disk valve | RFQ |
| D15-631RPC644-674-972 | westinghouse electric corp | disk valve | RFQ |
| D15-631JPC643-644-674-972 | westinghouse electric corp | disk valve | RFQ |
| 8835 | northrop grumman systems corporation | disk valve | RFQ |
| 8835AND9235 | westinghouse electric corp | disk valve | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAZE | SHANK DIAMETER | 7.747 INCHES NOMINAL |
| ABKK | FLANGE DIAMETER | 1.719 INCHES NOMINAL |
| ABKW | OVERALL HEIGHT | 3.812 INCHES NOMINAL |
| CRRB | SEAT ANGLE | 40.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL CORROSION RESISTING |
| MEDA | MEDIA FOR WHICH DESIGNED | STEAM |
| STYL | STYLE DESIGNATOR | POPPET |
| Relevant Components for NSN - 4820-00-218-6054, 4820002186054 | ||||
| 4820-00-405-2314 (4820004052314) | 4820-01-644-7717 (4820016447717) | 4820-00-138-5801 (4820001385801) | 4820-01-478-3615 (4820014783615) | |
| 4810-01-231-9665 (4810012319665) | 4810-01-463-1795 (4810014631795) | 4820-01-270-4213 (4820012704213) | 4820-01-482-5390 (4820014825390) | |
| 4810-01-574-6488 (4810015746488) | 4820-01-375-3688 (4820013753688) | 4810-01-486-6370 (4810014866370) | 4820-01-562-8058 (4820015628058) | |
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