4820-01-110-7169 SEAT,VALVE Index 4320-01-110-7171 PUMP,CENTRIFUGAL

National Stock Number:
4820-01-110-7170

Federal Supply Class:
4820

National Item Identification Number:
011107170

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:
067-01739226916NORTHROP GRUMMAN SYSTEMS CORPORATION
900V58900672GRIMES AEROSPACE CO


Techincal Specification:
BODY OUTSIDE DIAMETER0.920 INCHES MINIMUM AND 0.923 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER0.499 INCHES MINIMUM AND 0.501 INCHES MAXIMUM SECOND STEP
BODY STEPPED INSIDE DIAMETER0.730 INCHES MINIMUM AND 0.750 INCHES MAXIMUM FIRST STEP
BODY STEPPED INSIDE DIAMETER0.665 INCHES MINIMUM AND 0.685 INCHES MAXIMUM THIRD STEP
FLANGE DIAMETER0.920 INCHES MINIMUM AND 0.923 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4119,T351 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
SEAL ACCOMMODATION TYPERECESSED
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORPLAIN FLANGED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2470,GRAY ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
UNDER FLANGE HEIGHT0.235 INCHES NOMINAL


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