5360-00-216-9015 SPRING,HELICAL,COMPRESSION Index 4820-00-216-9017 SEAT,VALVE

National Stock Number:
4820-00-216-9016

Federal Supply Class:
4820

National Item Identification Number:
002169016

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:
TV657486184GRISWOLD INDUSTRIES
V6574H86184GRISWOLD INDUSTRIES


Techincal Specification:
BODY STEPPED INSIDE DIAMETER4.000 INCHES MINIMUM AND 4.004 INCHES MAXIMUM FIRST STEP
BODY STEPPED INSIDE DIAMETER4.060 INCHES NOMINAL SECOND STEP
FLANGE DIAMETER5.000 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.375 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD SIZE4.500 INCHES SINGLE THREADED PORTION
SEAT ANGLE IN DEG5.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.430 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.630 INCHES NOMINAL


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