NSN 4820-00-408-2781
Part Details | VALVE SEAT
4820-00-408-2781 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: 28261243, 2826124-3, 4820-00-408-2781, 00-408-2781, 4820004082781, 004082781
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
48 | JAN 28, 1972 | 00-408-2781 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
THREADED FLANGED

Cross Reference | NSN 4820-00-408-2781
Part Number | Cage Code | Manufacturer |
---|---|---|
2826124-3 | 33068 | TRIUMPH ACTUATION SYSTEMS -CONNECTICUT, LLC |
Technical Data | NSN 4820-00-408-2781
Characteristic | Specifications |
---|---|
STYLE DESIGNATOR | 4 THREADED FLANGED |
FLANGE DIAMETER | 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
BODY OUTSIDE DIAMETER | 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
BODY INSIDE DIAMETER | 0.068 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
FLANGE SEAT TO DISK END HEIGHT | 0.069 INCHES MINIMUM AND 0.071 INCHES MAXIMUM |
UNDER FLANGE HEIGHT | 0.119 INCHES MINIMUM AND 0.121 INCHES MAXIMUM |
SEATING SURFACE SHAPE | RADIAL |
SEAT RADIUS | 0.040 INCHES MINIMUM AND 0.042 INCHES MAXIMUM |
FSC APPLICATION DATA | VALVE,HYDRAULIC STEERINGAIRCRAFT |