4820-01-086-9969 SEAT,VALVE Index 9905-01-086-9972 SIGN FACE,ADHESIVE

National Stock Number:
4810-01-086-9970

Federal Supply Class:
4810

National Item Identification Number:
010869970

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:
D5-9-16181361EDGEWOOD CHEMICAL BIOLOGICAL CENTER ECBC


Techincal Specification:
BODY OUTSIDE DIAMETER1.000 INCHES MINIMUM AND 1.004 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER0.176 INCHES MINIMUM AND 0.181 INCHES MAXIMUM FIRST STEP
BODY STEPPED INSIDE DIAMETER0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM SECOND STEP
BODY STEPPED INSIDE DIAMETER0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM THIRD STEP
FLANGE DIAMETER1.646 INCHES MINIMUM AND 1.688 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.405 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYAMIDE (NYLON) OVERALL
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT0.297 INCHES MINIMUM AND 0.329 INCHES MAXIMUM


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