NSN 4820-00-256-2301
Part Details | VALVE SEAT
4820-00-256-2301 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: 769077, 7-69-077, 768184, 7-68-184, 775110, 7-75-110, 769184757110, 7-69-184/7-57-110, 4820-00-256-2301, 00-256-2301, 4820002562301, 002562301
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | MAR 15, 1971 | 00-256-2301 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN FLANGED
Cross Reference | NSN 4820-00-256-2301
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7-69-077 | 00912 | AKRON BRASS COMPANY |
| 7-68-184 | 00912 | AKRON BRASS COMPANY |
| 7-75-110 | 00912 | AKRON BRASS COMPANY |
| 7-69-184/7-57-110 | 00912 | AKRON BRASS COMPANY |
Technical Data | NSN 4820-00-256-2301
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN FLANGED |
| FLANGE DIAMETER | 2.765 INCHES NOMINAL |
| BODY OUTSIDE DIAMETER | 2.505 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 1.975 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.230 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.143 INCHES NOMINAL |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 45.000 NOMINAL |
| SEAL ACCOMMODATION TYPE | GROOVED |