4820-00-858-0107 SEAT,VALVE Index 4310-00-858-0109 RING SET,PISTON

National Stock Number:
4820-00-858-0108

Federal Supply Class:
4820

National Item Identification Number:
008580108

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:
101B209BAPC124446GENERAL ELECTRIC COMPANY
101B209BAPIECE103502GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT
101B209BYPIECE101289GENERAL ELECTRIC COMPANY
101B209BYPIECE103502GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT
101B209BYPC181893GENERAL ELECTRIC CO LYNN RIVER WORKS


Techincal Specification:
BODY OUTSIDE DIAMETER2.062 INCHES NOMINAL
BODY STEPPED INSIDE DIAMETER0.969 INCHES MINIMUM AND 0.971 INCHES MAXIMUM FIRST STEP
BODY STEPPED INSIDE DIAMETER1.241 INCHES MINIMUM AND 1.244 INCHES MAXIMUM SECOND STEP
FLANGE DIAMETER2.626 INCHES MINIMUM AND 2.631 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-17131,TY MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CL 410,COND T FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALSTEEL BODY
MATERIALSTEEL SEAT
SEAT RADIUS0.288 INCHES MINIMUM AND 0.294 INCHES MAXIMUM
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT1.116 INCHES NOMINAL


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