4820-00-479-3454 SEAT,VALVE Index 2810-00-479-3468 BUSHING,SLEEVE

National Stock Number:
4820-00-479-3457

Federal Supply Class:
4820

National Item Identification Number:
004793457

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:
H2257PC5316712SIEMENS ENERGY, INC.
H2259PC5316712SIEMENS ENERGY, INC.
KJ62ZX216712SIEMENS ENERGY, INC.


Techincal Specification:
BODY INSIDE DIAMETER3.500 INCHES MINIMUM AND 3.501 INCHES MAXIMUM
BODY OUTSIDE DIAMETER5.989 INCHES MINIMUM AND 5.990 INCHES MAXIMUM
FLANGE DIAMETER7.460 INCHES MINIMUM AND 7.480 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.750 NOMINAL INCHES
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 RADIUS0.375 INCHES NOMINAL
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN FLANGED
TAPER LENGTH6.047 NOMINAL INCHES
TAPER MAJOR DIAMETER4.921 INCHES NOMINAL
TAPER MINOR DIAMETER3.500 INCHES MINIMUM AND 3.501 INCHES MAXIMUM
UNDER FLANGE HEIGHT4.547 INCHES NOMINAL


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