NSN 4820-01-446-1998
Part Details | VALVE SEAT
4820-01-446-1998 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: 8036397434X21XXX022, 803-6397434-X21XXX-022, 6397434, 4820-01-446-1998, 01-446-1998, 4820014461998, 014461998
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JUN 25, 1997 | 01-446-1998 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
THREADED FLANGED
Cross Reference | NSN 4820-01-446-1998
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 803-6397434-X21XXX-022 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 6397434 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 4820-01-446-1998
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | THREADED FLANGED |
| FLANGE DIAMETER | 0.930 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 0.471 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.122 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.316 INCHES NOMINAL |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 45.000 NOMINAL |
| SPECIAL FEATURES | COMPONENT OF 1/2 IN.GLOBE VALVE |
| END ITEM IDENTIFICATION | SEAWOLF CLASS SUBMARINE |