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:
BODY STEPPED INSIDE DIAMETER0.500 INCHES NOMINAL FIRST STEP
BODY STEPPED INSIDE DIAMETER0.703 INCHES NOMINAL SECOND STEP
BODY STEPPED INSIDE DIAMETER1.500 INCHES NOMINAL THIRD STEP
FLANGE DIAMETER2.460 INCHES MINIMUM AND 2.480 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT1.000 INCHES NOMINAL
FSC APPLICATION DATASTEAM TURBINE,ELECTRIC GENERATION
MATERIAL DOCUMENT AND CLASSIFICATIONDE15-15B MFR REF SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONSTELLITE HAYNES 6 MFR REF SINGLE MATERIAL RESPONSE SEAT
MATERIALSTEEL BODY
MATERIALSTEEL SEAT
NOMINAL THREAD SIZE2.000 INCHES SINGLE THREADED PORTION
SEAT RADIUS0.185 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH1.000 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
UNDER FLANGE HEIGHT1.000 INCHES NOMINAL


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