4820-01-244-8438 SEAT,VALVE Index 7690-01-244-8440 MARKER,IDENTIFICATION

National Stock Number:
4820-01-244-8439

Federal Supply Class:
4820

National Item Identification Number:
012448439

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:
2126714959CRANE CO DIV VALVE DIV
21267 PIECE 414959CRANE CO DIV VALVE DIV
BB61-S48-030980064NAVAL SHIP SYSTEMS COMMAND
BB61-S48-0309 ALT PIECE 480064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER9.653 INCHES NOMINAL
BODY OUTSIDE DIAMETER9.777 INCHES NOMINAL
FLANGE DIAMETER10.313 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.469 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A216,GR.WCB ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIALSTEEL OVERALL
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT1.318 INCHES NOMINAL


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