NSN 4820-01-139-1684
Part Details | VALVE SEAT
4820-01-139-1684 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: MP208B, MP-20-8B, 4820-01-139-1684, 01-139-1684, 4820011391684, 011391684
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | SEP 25, 1982 | 01-139-1684 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN
Cross Reference | NSN 4820-01-139-1684
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MP-20-8B | 92021 | PBM, INC. |
Technical Data | NSN 4820-01-139-1684
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN |
| OVERALL HEIGHT | 0.645 INCHES NOMINAL |
| BODY OUTSIDE DIAMETER | 4.392 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 3.000 INCHES NOMINAL |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 45.000 NOMINAL |