NSN 4820-00-978-2321
Part Details | VALVE SEAT
4820-00-978-2321 A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.
Alternate Parts: 8X0017PC1H2C, 8X00171, 8X0017-1, 8X0017, 8WW0060PC1H2C, 4820-00-978-2321, 00-978-2321, 4820009782321, 009782321
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JAN 01, 1962 | 00-978-2321 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN FLANGED
Cross Reference | NSN 4820-00-978-2321
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8X0017PC1H2C | 72957 | ELLIOTT COMPANYDIV JEANNETTE |
| 8X0017-1 | 72957 | ELLIOTT COMPANYDIV JEANNETTE |
| 8X0017 | 72957 | ELLIOTT COMPANYDIV JEANNETTE |
| 8WW0060PC1H2C | 72957 | ELLIOTT COMPANYDIV JEANNETTE |
Technical Data | NSN 4820-00-978-2321
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN FLANGED |
| FLANGE DIAMETER | 2.500 INCHES NOMINAL |
| BODY OUTSIDE DIAMETER | 2.124 INCHES MINIMUM AND 2.125 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 1.480 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.500 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.500 INCHES NOMINAL |
| SEATING SURFACE SHAPE | RADIAL |
| SEAT RADIUS | 0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |