4710-00-739-6639 TUBE ASSEMBLY,METAL Index 5307-00-739-6645 STUD,CYLINDER HEAD,SPECIAL

National Stock Number:
4820-00-739-6641

Federal Supply Class:
4820

National Item Identification Number:
007396641

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:
156004-0977842EATON CORPORATION
B34470PC277842EATON CORPORATION


Techincal Specification:
BODY INSIDE DIAMETER0.312 INCHES NOMINAL
OVERALL HEIGHT1.750 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD SIZE0.872 INCHES FIRST THREADED PORTION
NOMINAL THREAD SIZE1.188 INCHES SECOND THREADED PORTION
SEATING SURFACE SHAPEFLAT
SPECIAL FEATURESW/GASKET
STYLE DESIGNATORDOUBLE FLANGED
THREAD CLASS2A FIRST THREADED PORTION
THREAD CLASS2A SECOND THREADED PORTION
THREAD LENGTH0.375 INCHES NOMINAL FIRST THREADED PORTION
THREAD LENGTH0.625 INCHES NOMINAL SECOND THREADED PORTION
THREAD QUANTITY PER INCH12 SECOND THREADED PORTION
THREAD SERIES DESIGNATORUN SECOND THREADED PORTION
THREAD SERIES DESIGNATORUNF FIRST THREADED PORTION


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