AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-337-1101 (003371101) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Westinghouse Electric Corp |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| D15-439PPC385 | northrop grumman systems corporation | seat valve | RFQ |
| D15-439-J PC 342 | northrop grumman systems corporation | seat valve | RFQ |
| D15-439-B | westinghouse electric corp | seat valve | RFQ |
| D15-439IPC385 | westinghouse electric corp | seat valve | RFQ |
| D15-439NPC385 | westinghouse electric corp | seat valve | RFQ |
| D15-439-B | northrop grumman systems corporation | seat valve | RFQ |
| D15-621JPC342 | northrop grumman systems corporation | seat valve | RFQ |
| D15-621PPC342 | westinghouse electric corp | seat valve | RFQ |
| D15-621-B | northrop grumman systems corporation | seat valve | RFQ |
| D15-439IPC385 | northrop grumman systems corporation | seat valve | RFQ |
| D15-621BPC342 | westinghouse electric corp | seat valve | RFQ |
| D15-621-B | westinghouse electric corp | seat valve | RFQ |
| D15-439BPC385 | northrop grumman systems corporation | seat valve | RFQ |
| D15-621JPC342 | westinghouse electric corp | seat valve | RFQ |
| D15-439-J | westinghouse electric corp | seat valve | RFQ |
| D15-621NPC342 | westinghouse electric corp | seat valve | RFQ |
| D15-439BPC385 | westinghouse electric corp | seat valve | RFQ |
| D15-439PPC385 | westinghouse electric corp | seat valve | RFQ |
| D15-621NPC342 | northrop grumman systems corporation | seat valve | RFQ |
| 9975 | northrop grumman systems corporation | seat valve | RFQ |
| D15-439-J | northrop grumman systems corporation | seat valve | RFQ |
| D15-621BPC342 | northrop grumman systems corporation | seat valve | RFQ |
| D15-439-J PC 342 | westinghouse electric corp | seat valve | RFQ |
| D15-439NPC385 | northrop grumman systems corporation | seat valve | RFQ |
| D15-621PPC342 | northrop grumman systems corporation | seat valve | RFQ |
| 9975 | westinghouse electric corp | seat valve | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 2.000 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 1.500 INCHES NOMINAL |
| ADAS | BODY INSIDE DIAMETER | 0.688 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.188 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.750 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 45.000 NOMINAL |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| MATT | MATERIAL | COBALT ALLOY SEAT |
| MATT | MATERIAL | STEEL BODY |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| Relevant Components for NSN - 4820-00-337-1101, 4820003371101 | ||||
| 4810-01-693-0546 (4810016930546) | 4810-01-224-8636 (4810012248636) | 4810-00-181-8826 (4810001818826) | 4810-00-533-2538 (4810005332538) | |
| 4820-01-319-3454 (4820013193454) | 4820-01-154-9733 (4820011549733) | 4810-01-176-9496 (4810011769496) | 4820-01-278-5449 (4820012785449) | |
| 4810-01-152-7681 (4810011527681) | 4810-00-127-2787 (4810001272787) | 4820-00-557-7800 (4820005577800) | 4810-01-469-1460 (4810014691460) | |
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