5330-00-738-1686 GASKET Index 5330-00-738-1688 PACKING

National Stock Number:
4820-00-738-1687

Federal Supply Class:
4820

National Item Identification Number:
007381687

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:
P3677A70667ATLAS VALVE CO


Techincal Specification:
BODY STEPPED INSIDE DIAMETER0.500 INCHES NOMINAL FIRST STEP
BODY STEPPED INSIDE DIAMETER0.812 INCHES NOMINAL SECOND STEP
FLANGE DIAMETER1.062 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.375 INCHES NOMINAL
MATERIALCOBALT ALLOY FACE
MATERIALSTEEL CORROSION RESISTING BODY
NOMINAL THREAD SIZE0.875 INCHES SINGLE THREADED PORTION
SEAT ANGLE IN DEG55.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.500 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNF SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.500 INCHES NOMINAL


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