4820-01-076-4342 SEAT,VALVE Index 2540-01-076-4345 BOX,SWINGFIREHEATERACCESS

National Stock Number:
4820-01-076-4343

Federal Supply Class:
4820

National Item Identification Number:
010764343

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:
AV95-042-1PC2604845AUTOMATIC SWITCH COMPANY
FV-86-688-104845AUTOMATIC SWITCH COMPANY


Techincal Specification:
BODY INSIDE DIAMETER0.325 INCHES NOMINAL
FLANGE DIAMETER0.250 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.120 INCHES NOMINAL
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.688 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
SPECIAL FEATURESDISK GUIDE MANUFACTURED ON BOTTOM OF SEAT
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.200 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.313 INCHES NOMINAL


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