NSN 4820-00-564-9891
Part Details | VALVE SEAT
4820-00-564-9891 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: 8511447, 4820-00-564-9891, 00-564-9891, 4820005649891, 005649891
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JAN 01, 1963 | 00-564-9891 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN FLANGED
Cross Reference | NSN 4820-00-564-9891
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8511447 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 4820-00-564-9891
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN FLANGED |
| FLANGE DIAMETER | 0.432 INCHES MINIMUM AND 0.442 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| FLANGE SEAT TO DISK END HEIGHT | 0.188 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.438 INCHES NOMINAL |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 45.000 NOMINAL |
| TAPER MINOR DIAMETER | 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| TAPER MAJOR DIAMETER | 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| TAPER LENGTH | 0.625 INCHES NOMINAL |