NSN 4820-00-594-1998
Part Details | VALVE SEAT
4820-00-594-1998 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: 1JC89566, 1JC8956-6, 1JH4864PC43, 1JC89566, 1JC8956-6, 1JC89566, 1JC8956-6, 4820-00-594-1998, 00-594-1998, 4820005941998, 005941998
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JAN 01, 1963 | 00-594-1998 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
THREADED FLANGED
Cross Reference | NSN 4820-00-594-1998
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1JC8956-6 | 90099 | NORTHROP GRUMMAN SYSTEMS CORPORATIONDBA NORTHROP GRUMMAN MARINE SYSTEMS |
| 1JH4864PC43 | 79500 | WESTINGHOUSE ELECTRIC CORP |
| 1JC8956-6 | 79500 | WESTINGHOUSE ELECTRIC CORP |
| 1JC8956-6 | 88657 | WESTINGHOUSE ELECTRIC CORPPOWER GENERATION-TURBINE DIV |
Technical Data | NSN 4820-00-594-1998
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | 4 THREADED FLANGED |
| FLANGE DIAMETER | 3.042 INCHES MINIMUM AND 3.052 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 2.562 INCHES MINIMUM AND 2.563 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 1.344 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM |
| UNDER FLANGE HEIGHT | 0.938 INCHES NOMINAL |
| SEATING SURFACE SHAPE | RADIAL |
| SEAT RADIUS | 0.308 INCHES MINIMUM AND 0.318 INCHES MAXIMUM |
| TAPER MINOR DIAMETER | 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM |
| TAPER MAJOR DIAMETER | 1.344 INCHES NOMINAL |
| SEAL ACCOMMODATION TYPE | GROOVED |