2825-00-923-6850 LOCKING DEVICE AND Index 4820-00-923-6852 SEAT,VALVE

National Stock Number:
4820-00-923-6851

Federal Supply Class:
4820

National Item Identification Number:
009236851

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:
894B432PC101289GENERAL ELECTRIC COMPANY


Techincal Specification:
BODY INSIDE DIAMETER1.398 INCHES MINIMUM AND 1.408 INCHES MAXIMUM
BODY OUTSIDE DIAMETER3.260 INCHES NOMINAL
FLANGE DIAMETER4.438 INCHES MINIMUM AND 4.439 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT1.625 INCHES MINIMUM AND 1.627 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE
MATERIALCOBALT ALLOY FACE
SEAT RADIUS0.483 INCHES MINIMUM AND 0.493 INCHES MAXIMUM
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN FLANGED
TAPER MINOR DIAMETER1.398 INCHES MINIMUM AND 1.408 INCHES MAXIMUM
UNDER FLANGE HEIGHT1.873 INCHES MINIMUM AND 1.875 INCHES MAXIMUM


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