Part Details | VALVE SEAT
4820-00-138-2072 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: 2640801X1PC22, 2640-801X1PC22, 4820-00-138-2072, 00-138-2072, 4820001382072, 001382072
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JUL 24, 1971 | 00-138-2072 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
THREADED FLANGED
Cross Reference | NSN 4820-00-138-2072
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 2640-801X1PC22 | 96169 | ELECTRIC BOAT CORPORATION |
Technical Data | NSN 4820-00-138-2072
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | 1 THREADED FLANGED |
| OVERALL HEIGHT | 0.563 INCHES NOMINAL |
| BODY OUTSIDE DIAMETER | 4.484 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 3.063 INCHES NOMINAL |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 45.000 NOMINAL |
| SEAL ACCOMMODATION TYPE | GROOVED |
| SPECIAL FEATURES | 2 GROOVES 180 DEG APART,0.250 IN. RAD APPROX,0.062 IN. DEEP APPROX |