4820-01-144-3263 SEAT,VALVE Index 9905-01-144-3265 PLATE,DESIGNATION

National Stock Number:
4820-01-144-3264

Federal Supply Class:
4820

National Item Identification Number:
011443264

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:
76774-35X296169ELECTRIC BOAT CORPORATION
SSBN640-501-214647180064NAVAL SHIP SYSTEMS COMMAND
SSBN640-501-2146471 PC 3480064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER13.000 INCHES NOMINAL
BODY OUTSIDE DIAMETER15.375 INCHES NOMINAL
FLANGE DIAMETER17.500 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.625 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQS-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
SEAT RADIUS0.010 INCHES NOMINAL
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT0.750 INCHES NOMINAL


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