2825-00-479-3448 VALVE ASSY Index 4820-00-479-3454 SEAT,VALVE

National Stock Number:
4820-00-479-3451

Federal Supply Class:
4820

National Item Identification Number:
004793451

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:
H2252PC2316712SIEMENS ENERGY, INC.
H2907PC2316712SIEMENS ENERGY, INC.
KJ62BAX116712SIEMENS ENERGY, INC.


Techincal Specification:
BODY INSIDE DIAMETER2.470 INCHES NOMINAL
BODY OUTSIDE DIAMETER3.489 INCHES MINIMUM AND 3.490 INCHES MAXIMUM
FLANGE DIAMETER4.499 INCHES MINIMUM AND 4.500 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.749 NOMINAL MILS AND 0.751 NOMINAL CENTIMETERS
MATERIAL DOCUMENT AND CLASSIFICATIONHAYNES STELLITE NO 6 MFR REF SINGLE MATERIAL RESPONSE FACE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-861,CLASS 405 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALSTEEL BODY
MATERIALSTEEL FACE
PROPRIETARY CHARACTERISTICSPACS
SEAT RADIUS0.660 INCHES NOMINAL
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN FLANGED
TAPER LENGTH2.688 NOMINAL INCHES
TAPER MAJOR DIAMETER2.470 INCHES NOMINAL
TAPER MINOR DIAMETER1.390 INCHES NOMINAL
UNDER FLANGE HEIGHT3.428 INCHES MINIMUM AND 3.448 INCHES MAXIMUM


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