| 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 | Northrop Grumman Systems Corporation, Westinghouse Electric Corp |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 9988 | northrop grumman systems corporation | seat valve | 90099 | RFQ |
| 9988 | westinghouse electric corp | seat valve | 80231 | RFQ |
| D15-518MPC393 | westinghouse electric corp | seat valve | 80231 | RFQ |
| D15-518MPC393 | northrop grumman systems corporation | seat valve | 90099 | RFQ |
| D15-518UPC393 | northrop grumman systems corporation | seat valve | 90099 | RFQ |
| D15-518UPC393 | westinghouse electric corp | seat valve | 80231 | RFQ |
| D15-518VPC393 | northrop grumman systems corporation | seat valve | 90099 | RFQ |
| D15-518VPC393 | westinghouse electric corp | seat valve | 80231 | RFQ |
| D15-518WPC393 | westinghouse electric corp | seat valve | 80231 | RFQ |
| D15-518WPC393 | 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 |
| Components Related to NSN - 4820-00-337-1083, 4820003371083 | ||||
| 4820-01-207-4765 (4820012074765) | 4810-01-288-4028 (4810012884028) | 4820-01-448-5478 (4820014485478) | 4820-01-669-0039 (4820016690039) | |
| 4820-00-289-0856 (4820002890856) | 4820-01-349-7107 (4820013497107) | 4820-01-251-6138 (4820012516138) | 4810-01-615-6216 (4810016156216) | |
| 4820-01-038-5445 (4820010385445) | 4820-01-171-6472 (4820011716472) | 4810-01-534-9910 (4810015349910) | 4820-01-254-9633 (4820012549633) | |
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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