NSN 4820-01-186-4720
Part Details | VALVE SEAT
4820-01-186-4720 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: 68205565, 6820556-5, 68205565, 6820556-5, 4820-01-186-4720, 01-186-4720, 4820011864720, 011864720
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | AUG 10, 1984 | 01-186-4720 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN
Cross Reference | NSN 4820-01-186-4720
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6820556-5 | 73342 | ALLISON TRANSMISSION, INC. |
| 6820556-5 | 63005 | ROLLS-ROYCE CORPORATION |
Technical Data | NSN 4820-01-186-4720
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN |
| OVERALL HEIGHT | 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 0.663 INCHES MINIMUM AND 0.664 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 0.344 INCHES MINIMUM AND 0.346 INCHES MAXIMUM |
| SEATING SURFACE SHAPE | RADIAL |
| SEAT RADIUS | 0.218 INCHES NOMINAL |