4410-00-413-4259 GLAND Index 5330-00-413-4266 GASKET

National Stock Number:
4820-00-413-4261

Federal Supply Class:
4820

National Item Identification Number:
004134261

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:
7955738056ASHCROFT INC


Techincal Specification:
BODY INSIDE DIAMETER1.880 INCHES NOMINAL
OVERALL HEIGHT2.910 INCHES NOMINAL
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE2.625 INCHES FIRST THREADED PORTION
NOMINAL THREAD SIZE2.812 INCHES SECOND THREADED PORTION
SEAT ANGLE IN DEG45.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
SPECIAL FEATURESSEAT HAS WRENCHING FEATURE BETWEEN THDS ON OUT SIDE
STYLE DESIGNATORDOUBLE FLANGED
THREAD CLASS2A FIRST THREADED PORTION
THREAD LENGTH0.375 INCHES NOMINAL SECOND THREADED PORTION
THREAD LENGTH0.935 INCHES NOMINAL FIRST THREADED PORTION
THREAD QUANTITY PER INCH16 FIRST THREADED PORTION
THREAD QUANTITY PER INCH18 SECOND THREADED PORTION
THREAD SERIES DESIGNATORUN FIRST THREADED PORTION
THREAD SERIES DESIGNATORUNS SECOND THREADED PORTION


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