5120-00-923-2490 GUIDE,INSTALLING Index 2590-00-923-2494 KIT

National Stock Number:
4820-00-923-2491

Federal Supply Class:
4820

National Item Identification Number:
009232491

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:
682055663005ROLLS-ROYCE CORPORATION
682055673342ALLISON TRANSMISSION INC
6820556-163005ROLLS-ROYCE CORPORATION
6820556-173342ALLISON TRANSMISSION INC


Techincal Specification:
BODY INSIDE DIAMETER0.344 INCHES MINIMUM AND 0.346 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.659 INCHES MINIMUM AND 0.660 INCHES MAXIMUM
OVERALL HEIGHT0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
SEAT RADIUS0.218 INCHES NOMINAL
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN


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