1560-00-340-0845 SPACER,RING Index 1650-00-340-0854 DISK,VALVE

National Stock Number:
4820-00-340-0853

Federal Supply Class:
4820

National Item Identification Number:
003400853

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:
8U8017-460029WOODWARD HRT, INC.


Techincal Specification:
BODY OUTSIDE DIAMETER0.363 INCHES MINIMUM AND 0.367 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER0.202 INCHES MINIMUM AND 0.205 INCHES MAXIMUM FIRST STEP
BODY STEPPED INSIDE DIAMETER0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM SECOND STEP
FLANGE DIAMETER0.684 INCHES MINIMUM AND 0.685 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM
FSC APPLICATION DATAVALVE,LINEAR,DIRECTIONAL CONTROL,ACFT
MATERIALALUMINUM ALLOY 7075 OVERALL
SPECIAL FEATURES2 BLEED HOLES
SEATING SURFACE SHAPEFLAT
SEAL ACCOMMODATION TYPERECESSED
SURFACE TREATMENTANODIZE OVERALL
UNDER FLANGE HEIGHT0.085 INCHES MINIMUM AND 0.100 INCHES MAXIMUM


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