4820-00-678-2041 DIAPHRAGM,VALVE,FLAT Index 4820-00-678-2043 DISK,VALVE

National Stock Number:
4820-00-678-2042

Federal Supply Class:
4820

National Item Identification Number:
006782042

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:
P7795A70667ATLAS VALVE CO


Techincal Specification:
BODY STEPPED INSIDE DIAMETER0.125 INCHES NOMINAL SECOND STEP
BODY STEPPED INSIDE DIAMETER0.250 INCHES NOMINAL FIRST STEP
FLANGE DIAMETER1.062 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.468 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD SIZE1.000 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG45.000 NOMINAL
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.688 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
THREAD QUANTITY PER INCH14 SINGLE THREADED PORTION
UNDER FLANGE HEIGHT1.059 INCHES NOMINAL


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