4820-01-228-9616 SEAT,VALVE Index 5365-01-228-9618 PLUG,MACHINE THREAD

National Stock Number:
4820-01-228-9617

Federal Supply Class:
4820

National Item Identification Number:
012289617

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:
803-5001003-X1X1-0453711NAVAL SEA SYSTEMS COMMAND
803-5001003-X1X1-04 SPCLN53711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER0.422 INCHES MINIMUM AND 0.452 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.710 INCHES NOMINAL
CRITICALITY CODE JUSTIFICATIONZZZY
FLANGE DIAMETER0.990 INCHES MINIMUM AND 0.995 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.085 INCHES NOMINAL
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SEAT ANGLE IN DEG15.233 MINIMUM AND 17.233 MAXIMUM
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.080 INCHES MINIMUM AND 0.085 INCHES MAXIMUM
STYLE DESIGNATORPLAIN FLANGED


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