4820-01-178-9684 SEAT,VALVE Index 9905-01-178-9690 BAND,MARKER

National Stock Number:
4820-01-178-9685

Federal Supply Class:
4820

National Item Identification Number:
011789685

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:
845-211025480064NAVAL SHIP SYSTEMS COMMAND
845-2110254ASSYRF1-2INPC2680064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER0.500 INCHES NOMINAL
BODY OUTSIDE DIAMETER0.828 INCHES NOMINAL
FLANGE DIAMETER0.937 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.188 INCHES NOMINAL
MATERIALNICKEL ALLOY OVERALL
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT0.312 INCHES NOMINAL


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