5360-00-301-4980 SPRING,HELICAL,COMPRESSION Index 4820-00-301-4983 SEAT,VALVE

National Stock Number:
4820-00-301-4982

Federal Supply Class:
4820

National Item Identification Number:
003014982

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:
DJV62F16712SIEMENS ENERGY, INC.
H1129PC16116712SIEMENS ENERGY, INC.
H3230200PC16180064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER0.966 INCHES NOMINAL
FLANGE DIAMETER2.585 INCHES MINIMUM AND 2.605 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.500 INCHES NOMINAL
HARDNESS RATING387.0 BRINELL STANDARD NOMINAL BODY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-853 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALSTEEL BODY
NOMINAL THREAD SIZE2.000 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPERADIAL
SEAT RADIUS0.156 INCHES NOMINAL
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.813 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH8 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
UNDER FLANGE HEIGHT1.360 INCHES NOMINAL


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