NSN 4820-00-739-1777
Part Details | VALVE SEAT
4820-00-739-1777 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: 664908, 66-4908, 4820-00-739-1777, 00-739-1777, 4820007391777, 007391777
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JAN 01, 1963 | 00-739-1777 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
THREADED FLANGED
Cross Reference | NSN 4820-00-739-1777
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 66-4908 | 81205 | THE BOEING COMPANYDBA BOEING |
Technical Data | NSN 4820-00-739-1777
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | 4 THREADED FLANGED |
| FLANGE DIAMETER | 1.175 INCHES MINIMUM AND 1.180 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 0.750 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 0.630 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.440 INCHES MINIMUM AND 0.445 INCHES MAXIMUM |
| UNDER FLANGE HEIGHT | 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| SEATING SURFACE SHAPE | FLAT |
| SEAL ACCOMMODATION TYPE | GROOVED |