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)
48JAN 28, 197200-408-278122113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

THREADED FLANGED

Cross Reference | NSN 4820-00-408-2781
Part Number Cage Code Manufacturer
2826124-333068TRIUMPH ACTUATION SYSTEMS -CONNECTICUT, LLC
Technical Data | NSN 4820-00-408-2781
Characteristic Specifications
STYLE DESIGNATOR4 THREADED FLANGED
FLANGE DIAMETER0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
BODY INSIDE DIAMETER0.068 INCHES MINIMUM AND 0.069 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.069 INCHES MINIMUM AND 0.071 INCHES MAXIMUM
UNDER FLANGE HEIGHT0.119 INCHES MINIMUM AND 0.121 INCHES MAXIMUM
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS0.040 INCHES MINIMUM AND 0.042 INCHES MAXIMUM
FSC APPLICATION DATAVALVE,HYDRAULIC STEERINGAIRCRAFT