2840-00-866-6875 SEAL,AIR,AIRCRAFT GAS TURBINE EN Index 1670-00-866-6878 CANOPY RELEASE

National Stock Number:
4820-00-866-6876

Federal Supply Class:
4820

National Item Identification Number:
008666876

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:
248105099551GOODRICH CORPORATION
248415499551GOODRICH CORPORATION


Techincal Specification:
BODY INSIDE DIAMETER0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.917 INCHES MINIMUM AND 0.922 INCHES MAXIMUM
FLANGE DIAMETER1.390 INCHES MINIMUM AND 1.410 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM
HARDNESS RATING36.0 ROCKWELL C NOMINAL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5610 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL OVERALL
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG14.000 MINIMUM AND 16.000 MAXIMUM
SPECIAL FEATURES3 SLOTS EQUALLY SPACED IN FLANGEDEND,CENTER HOLE ON FLANGED END 0.139 IN. MIN,0.142 IN. MAX DIA,0.075 IN. MIN,0.085 IN. MAX DEEP
UNDER FLANGE HEIGHT0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM


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