2920-01-062-1615 SPARK PLUG Index 4320-01-062-1620 PUMP,ROTARY

National Stock Number:
4820-01-062-1619

Federal Supply Class:
4820

National Item Identification Number:
010621619

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:
188727-008199657MAROTTA CONTROLS INC


Techincal Specification:
BODY INSIDE DIAMETER1.674 INCHES MINIMUM AND 1.676 INCHES MAXIMUM
BODY OUTSIDE DIAMETER2.195 INCHES MINIMUM AND 2.196 INCHES MAXIMUM
FLANGE DIAMETER2.375 INCHES MINIMUM AND 2.376 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.053 INCHES MINIMUM AND 0.059 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693,COMP A,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALPLASTIC POLYAMIDE OVERALL
SEAT ANGLE IN DEG1.817 MINIMUM AND 1.834 MAXIMUM
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.068 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
STYLE DESIGNATORPLAIN FLANGED


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