4820-00-407-8870 RETAINER,DIAPHRAGM Index 5305-00-407-8873 SCREW,MACHINE

National Stock Number:
4820-00-407-8871

Federal Supply Class:
4820

National Item Identification Number:
004078871

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:
885236-159364HONEYWELL INTERNATIONAL INC.
885236-199193HONEYWELL INTERNATIONAL INC.


Techincal Specification:
BODY INSIDE DIAMETER0.579 INCHES MINIMUM AND 0.581 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.922 INCHES MINIMUM AND 0.926 INCHES MAXIMUM
FLANGE DIAMETER1.024 INCHES MINIMUM AND 1.028 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
SEAT ANGLE IN DEG59.000 MINIMUM AND 61.000 MAXIMUM
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.580 INCHES MINIMUM AND 0.590 INCHES MAXIMUM
STYLE DESIGNATORPLAIN FLANGED


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