4730-00-887-3287 RESTRICTOR,FLUID FLOW Index 4810-00-887-3289 VALVE,BUTTERFLY

National Stock Number:
4820-00-887-3288

Federal Supply Class:
4820

National Item Identification Number:
008873288

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:
55598273030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
BODY OUTSIDE DIAMETER0.210 INCHES NOMINAL
BODY STEPPED INSIDE DIAMETER0.092 INCHES MINIMUM AND 0.097 INCHES MAXIMUM SECOND STEP
BODY STEPPED INSIDE DIAMETER0.160 INCHES NOMINAL THIRD STEP
BODY STEPPED INSIDE DIAMETER0.125 INCHES NOMINAL FIRST STEP
FLANGE DIAMETER0.367 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.255 INCHES NOMINAL
MATERIALALUMINUM ALLOY 6061 OVERALL
SEATING SURFACE SHAPEFLAT
UNDER FLANGE HEIGHT0.135 INCHES NOMINAL
STYLE DESIGNATORPLAIN FLANGED
SURFACE TREATMENTANODIZE OVERALL


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