4820-01-046-0830 VALVE,GATE Index 9905-01-046-0833 PLATE,INSTRUCTION

National Stock Number:
4810-01-046-0831

Federal Supply Class:
4810

National Item Identification Number:
010460831

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:
22571779318MEGGITT NORTH HOLLYWOOD INC


Techincal Specification:
BODY INSIDE DIAMETER0.1125 INCHES MINIMUM AND 0.1145 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.1575 INCHES MINIMUM AND 0.1577 INCHES MAXIMUM
FLANGE DIAMETER0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.020 INCHES MINIMUM AND 0.021 INCHES MAXIMUM
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 17-4PH OVERALL
PROPRIETARY CHARACTERISTICSPACS
SEAT RADIUS0.0781 INCHES NOMINAL
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN FLANGED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
UNDER FLANGE HEIGHT0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM


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