| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-337-1083 (003371083) |
| NCB Code | USA (00) |
| Manufacturer | Westinghouse Electric Corp, Northrop Grumman Systems Corporation |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 9988 | westinghouse electric corp | seat valve | 80231 | RFQ |
| D15-518UPC393 | northrop grumman systems corporation | seat valve | 90099 | RFQ |
| D15-518VPC393 | northrop grumman systems corporation | seat valve | 90099 | RFQ |
| D15-518WPC393 | northrop grumman systems corporation | seat valve | 90099 | RFQ |
| D15-518MPC393 | westinghouse electric corp | seat valve | 80231 | RFQ |
| D15-518WPC393 | westinghouse electric corp | seat valve | 80231 | RFQ |
| D15-518MPC393 | northrop grumman systems corporation | seat valve | 90099 | RFQ |
| D15-518UPC393 | westinghouse electric corp | seat valve | 80231 | RFQ |
| D15-518VPC393 | westinghouse electric corp | seat valve | 80231 | RFQ |
| 9988 | northrop grumman systems corporation | seat valve | 90099 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 2.000 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 1.751 INCHES MINIMUM AND 1.752 INCHES MAXIMUM |
| ADAS | BODY INSIDE DIAMETER | 1.250 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.188 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.688 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 45.000 NOMINAL |
| CQFM | HARDNESS RATING | 210.0 BRINELL STANDARD NOMINAL BODY |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| Relevant Components for NSN - 4820-00-337-1083, 4820003371083 | ||||
| 4820-01-478-7250 (4820014787250) | 4820-01-157-2874 (4820011572874) | 4820-01-152-3022 (4820011523022) | 4820-00-622-4732 (4820006224732) | |
| 4820-01-521-9794 (4820015219794) | 4820-01-396-0684 (4820013960684) | 4820-01-450-7273 (4820014507273) | 4820-01-124-2752 (4820011242752) | |
| 4820-01-233-6840 (4820012336840) | 4820-00-495-7877 (4820004957877) | 4820-01-708-6366 (4820017086366) | 4820-00-220-3237 (4820002203237) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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