NSN 4820-01-104-6770
Part Details | VALVE SEAT
4820-01-104-6770 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: 6859371, 6859371, 6859371, 6859371, 4820-01-104-6770, 01-104-6770, 4820011046770, 011046770
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | DEC 09, 1980 | 01-104-6770 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN FLANGED
Cross Reference | NSN 4820-01-104-6770
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6859371 | 73342 | ALLISON TRANSMISSION, INC. |
| 6859371 | 98072 | PRECISION PIECE PARTS INC |
| 6859371 | 63005 | ROLLS-ROYCE CORPORATION |
| 6859371 | 29953 | SPACE AGE ENGINEERING INC |
Technical Data | NSN 4820-01-104-6770
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | A PLAIN FLANGED |
| FLANGE DIAMETER | 1.122 INCHES MINIMUM AND 1.123 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 1.008 INCHES MINIMUM AND 1.012 INCHES MAXIMUM |
| FLANGE SEAT TO DISK END HEIGHT | 0.259 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.165 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| SEATING SURFACE SHAPE | RADIAL |
| SEAT RADIUS | 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM |
| END ITEM IDENTIFICATION | T-56 ENGINE |