5935-01-085-7070 BACKSHELL,ELECTRICAL CONNECTOR Index 4820-01-085-7072 SEAT,VALVE

National Stock Number:
4820-01-085-7071

Federal Supply Class:
4820

National Item Identification Number:
010857071

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:
MC1294476050EATON AEROSPACE LLC M C AEROSPACE DIV DBA STERER ENGINEERING


Techincal Specification:
BODY INSIDE DIAMETER0.111 INCHES MINIMUM AND 0.170 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.357 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
FLANGE DIAMETER0.550 INCHES MINIMUM AND 0.580 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.101 INCHES MINIMUM AND 0.108 INCHES MAXIMUM
HARDNESS RATING82.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
SEATING SURFACE SHAPERADIAL
SEAT RADIUS0.188 INCHES NOMINAL
STYLE DESIGNATORPLAIN FLANGED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMC+5 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
UNDER FLANGE HEIGHT0.418 INCHES MINIMUM AND 0.422 INCHES MAXIMUM


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