4820-00-393-4141 VALVE,CHECK Index 4820-00-393-4143 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-393-4142

Federal Supply Class:
4820

National Item Identification Number:
003934142

Description:
VALVE,CHECK

Detail:
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.


Manufacturer Information:
44676-855820RTX CORPORATION
488-6-SS-T-272352CURTISS-WRIGHT FLOW CONTROL CORPORATION
488-6SST-209990PARKER-HANNIFIN CORPORATION
488-6SST286768TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION STYLEFLARED (TUBE) FIRST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALSTEEL COMP 303 BODY
MATERIALSTEEL COMP 303 SEAT
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END
NOMINAL THREAD SIZE0.562 INCHES FIRST END
SEAT ANGLE37.0 DEGREES FIRST END
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENTPASSIVATE
THREAD CLASS3A FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD QUANTITY PER INCH18 FIRST END
THREAD SERIES DESIGNATORUNF FIRST END


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