2825-00-992-4659 VALVE,POPPET,STEAM Index 4820-00-992-4661 SEAT,VALVE

National Stock Number:
4820-00-992-4660

Federal Supply Class:
4820

National Item Identification Number:
009924660

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:
B5392016712SIEMENS ENERGY, INC.
DC62NX116712SIEMENS ENERGY, INC.


Techincal Specification:
STYLE DESIGNATORTHREADED FLANGED
FLANGE DIAMETER2.460 INCHES MINIMUM AND
2.480 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT1.000 INCHES NOMINAL
UNDER FLANGE HEIGHT1.000 INCHES NOMINAL
BODY STEPPED INSIDE DIAMETER0.500 INCHES NOMINAL FIRST STEP
0.703 INCHES NOMINAL SECOND STEP
1.500 INCHES NOMINAL THIRD STEP
MATERIALSTEEL BODY
STEEL SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONDE15-15B MFR REF SINGLE MATERIAL RESPONSE BODY
STELLITE HAYNES 6 MFR REF SINGLE MATERIAL RESPONSE SEAT
SEATING SURFACE SHAPERADIAL
SEAT RADIUS0.185 INCHES MINIMUM AND
0.189 INCHES MAXIMUM
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
NOMINAL THREAD SIZE2.000 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH1.000 INCHES NOMINAL SINGLE THREADED PORTION
FSC APPLICATION DATASTEAM TURBINE,ELECTRIC GENERATION
THE MANUFACTURERS DATA
MANUFACTURERS CODE16712
DESIGN CONTROL REFERENCEDC62NX1


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