4820-00-009-0391 VALVE,SAFETY RELIEF Index 4820-00-009-0393 SEAT,VALVE

National Stock Number:
4820-00-009-0392

Federal Supply Class:
4820

National Item Identification Number:
000090392

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:
311904-259364HONEYWELL INTERNATIONAL INC.
311904-281833TRANSDIGM INC
311904-299193HONEYWELL INTERNATIONAL INC.


Techincal Specification:
BODY INSIDE DIAMETER0.058 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.264 INCHES MINIMUM AND 0.269 INCHES MAXIMUM
FLANGE DIAMETER0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.035 NOMINAL MILS AND 0.040 NOMINAL CENTIMETERS
MATERIALSTEEL OVERALL
SEAT ANGLE IN DEG59.000 MINIMUM AND 61.000 MAXIMUM
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.105 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
STYLE DESIGNATORPLAIN FLANGED


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