NSN 4820-00-978-2320
Part Details | VALVE SEAT
4820-00-978-2320 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: 8X0017PC1H2A, 8X00172, 8X0017-2, 8X00172, 8X0017-2, 4820-00-978-2320, 00-978-2320, 4820009782320, 009782320
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JAN 01, 1962 | 00-978-2320 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN FLANGED
Cross Reference | NSN 4820-00-978-2320
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8X0017PC1H2A | 72957 | ELLIOTT COMPANYDIV JEANNETTE |
| 8X0017-2 | 72957 | ELLIOTT COMPANYDIV JEANNETTE |
| 8X0017-2 | 0SC87 | HLC INDUSTRIES INC |
Technical Data | NSN 4820-00-978-2320
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN FLANGED |
| FLANGE DIAMETER | 2.375 INCHES NOMINAL |
| BODY OUTSIDE DIAMETER | 2.124 INCHES MINIMUM AND 2.125 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 1.248 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| FLANGE SEAT TO DISK END HEIGHT | 0.500 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| SEATING SURFACE SHAPE | RADIAL |
| SEAT RADIUS | 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM |