4820-00-943-7297 SEAT,VALVE Index 4940-00-943-7299 BLADE,ROTARY

National Stock Number:
4820-00-943-7298

Federal Supply Class:
4820

National Item Identification Number:
009437298

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:
1237-5PC1385130FLOWSERVE CORPORATION DIV FLOWSERVE US INC


Techincal Specification:
BODY INSIDE DIAMETER38.000 INCHES NOMINAL
OVERALL HEIGHT1.120 INCHES MINIMUM AND 1.130 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY A OVERALL
NOMINAL THREAD SIZE39.250 INCHES SINGLE THREADED PORTION
SEAT ANGLE IN DEG15.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
SPECIAL FEATURESWELD ON 4 LUGS 0.375 INCH SQUARE,90 DEGREES APART ON INNER SURFACE
STYLE DESIGNATORPLAIN THREADED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.844 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH8 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION


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