2840-00-630-3173 COOLER,OIL,ASSEMBLY Index 4320-00-630-3182 SHAFT,SHOULDERED

National Stock Number:
4820-00-630-3177

Federal Supply Class:
4820

National Item Identification Number:
006303177

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:
144355P5000198PRATT & WHITNEY CANADA CORP
144355P5077445RTX CORPORATION
AS144355P5012776AIRCRAFT SUPPLIES


Techincal Specification:
BODY INSIDE DIAMETER2.335 INCHES MINIMUM AND 2.345 INCHES MAXIMUM
BODY OUTSIDE DIAMETER2.367 INCHES MINIMUM AND 2.371 INCHES MAXIMUM
FLANGE DIAMETER2.870 INCHES MINIMUM AND 2.871 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.436 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
FSC APPLICATION DATAACFT ENG R2000
HARDNESS RATING90.0 ROCKWELL B MINIMUM AND 105.0 ROCKWELL B MAXIMUM BODY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5700 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIALSTEEL BODY
SEAT ANGLE IN DEG44.500 MINIMUM AND 45.500 MAXIMUM
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT0.116 INCHES MINIMUM AND 0.143 INCHES MAXIMUM


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