4820-01-408-5714 SEAT,VALVE Index 4820-01-408-5716 SLEEVE AND SLIDE,DIRECTIONAL CON

National Stock Number:
4820-01-408-5715

Federal Supply Class:
4820

National Item Identification Number:
014085715

Description:
SEAT,VALVE

Detail:
A replaceable item designed to provide a circular 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.


Manufacturer Information:
138562380064NAVAL SHIP SYSTEMS COMMAND
803-1385623-04XX-6876364MILWAUKEE VALVE CO, INC
803-1385623-04XX-6880064NAVAL SHIP SYSTEMS COMMAND
803-1385623-04XX-6891643SERVICE BRASS AND ALUMINUM FOUNDRY CO, INC.


Techincal Specification:
BODY INSIDE DIAMETER0.375 INCHES NOMINAL
FLANGE DIAMETER4.812 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.250 INCHES NOMINAL
MATERIALNICKEL ALLOY SEAT
NOMINAL THREAD SIZE4.500 INCHES SINGLE THREADED PORTION
SPECIAL FEATURES4 LUGS EQUALLY SPACD; FOR 4.000 IN. Y VALVE
SEAT ANGLE IN DEG0.150 NOMINAL
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.688 INCHES NOMINAL
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.562 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION


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