NSN 4820-00-858-9981
Part Details | VALVE SEAT
4820-00-858-9981 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: 16083971, 1608397-1, 4820-00-858-9981, 00-858-9981, 4820008589981, 008589981
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JAN 01, 1962 | 00-858-9981 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
THREADED FLANGED
Cross Reference | NSN 4820-00-858-9981
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1608397-1 | 99251 | CARLETON LIFE SUPPORT SYSTEMS INC.DBA COBHAM MISSION SYSTEM |
Technical Data | NSN 4820-00-858-9981
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | 0 THREADED FLANGED |
| FLANGE DIAMETER | 0.254 INCHES MINIMUM AND 0.256 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 0.076 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| FLANGE SEAT TO DISK END HEIGHT | 0.073 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.286 INCHES NOMINAL |
| SEATING SURFACE SHAPE | RADIAL |
| SEAT RADIUS | 0.016 INCHES NOMINAL |