5365-00-037-5556 PLUG,MACHINE THREAD Index 2840-00-037-5577 BEARING,SLEEVE

National Stock Number:
4820-00-037-5576

Federal Supply Class:
4820

National Item Identification Number:
000375576

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:
144355P1000198PRATT & WHITNEY CANADA CORP
144355P1077445RTX CORPORATION
AS144355P1012776AIRCRAFT SUPPLIES


Techincal Specification:
BODY OUTSIDE DIAMETER2.367 INCHES MINIMUM AND 2.371 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER2.335 INCHES MINIMUM AND 2.345 INCHES MAXIMUM SECOND STEP
BODY STEPPED INSIDE DIAMETER2.276 INCHES MINIMUM AND 2.286 INCHES MAXIMUM THIRD STEP
BODY STEPPED INSIDE DIAMETER2.665 INCHES MINIMUM AND 2.675 INCHES MAXIMUM FIRST STEP
FLANGE DIAMETER2.830 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.435 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
FSC APPLICATION DATAACFT ENG R2800
HARDNESS RATING90.0 ROCKWELL B MINIMUM AND 105.0 ROCKWELL B MAXIMUM OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
SEAT ANGLE IN DEG45.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT0.140 INCHES NOMINAL


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