NSN 4820-00-057-0644
Part Details | VALVE SEAT
4820-00-057-0644 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: 180428, 4820-00-057-0644, 00-057-0644, 4820000570644, 000570644
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JUN 01, 1967 | 00-057-0644 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN FLANGED
Cross Reference | NSN 4820-00-057-0644
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 180428 | 99657 | MAROTTA CONTROLS, INC. |
Technical Data | NSN 4820-00-057-0644
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN FLANGED |
| FLANGE DIAMETER | 2.246 INCHES MINIMUM AND 2.248 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 1.750 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 1.160 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.360 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.240 INCHES NOMINAL |
| SEATING SURFACE SHAPE | RADIAL |
| SEAT RADIUS | 0.750 INCHES NOMINAL |
| SEAL ACCOMMODATION TYPE | GROOVED |