3120-00-594-1997 BUSHING,SLEEVE Index 4820-00-594-1999 DISK,VALVE

National Stock Number:
4820-00-594-1998

Federal Supply Class:
4820

National Item Identification Number:
005941998

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:
1JC8956-679500WESTINGHOUSE ELECTRIC CORP
1JC8956-688657WESTINGHOUSE ELECTRIC CORP POWER GENERATION-TURBINE DIV
1JH4864PC4379500WESTINGHOUSE ELECTRIC CORP
1JC8956-690099NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
BODY INSIDE DIAMETER1.344 INCHES NOMINAL
BODY OUTSIDE DIAMETER2.562 INCHES MINIMUM AND 2.563 INCHES MAXIMUM
FLANGE DIAMETER3.042 INCHES MINIMUM AND 3.052 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALCOBALT ALLOY FACE
MATERIALSTEEL BODY
SEAL ACCOMMODATION TYPEGROOVED
SEAT RADIUS0.308 INCHES MINIMUM AND 0.318 INCHES MAXIMUM
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN FLANGED
TAPER MAJOR DIAMETER1.344 INCHES NOMINAL
TAPER MINOR DIAMETER0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM
UNDER FLANGE HEIGHT0.938 INCHES NOMINAL


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