Part Details | VALVE SEAT
4820-00-139-3920 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: 18329681, 183296-81, 1832960081, 183296-0081, 4820-00-139-3920, 00-139-3920, 4820001393920, 001393920
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | AUG 18, 1971 | 00-139-3920 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN FLANGED
Cross Reference | NSN 4820-00-139-3920
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 183296-81 | 99657 | MAROTTA CONTROLS, INC. |
| 183296-0081 | 99657 | MAROTTA CONTROLS, INC. |
Technical Data | NSN 4820-00-139-3920
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN FLANGED |
| FLANGE DIAMETER | 0.871 INCHES MINIMUM AND 0.873 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 0.764 INCHES MINIMUM AND 0.766 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 0.500 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.050 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| SEATING SURFACE SHAPE | FLAT |