3040-00-449-4525 GEARSHAFT,HELICAL Index 4820-00-449-4527 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-449-4526

Federal Supply Class:
4820

National Item Identification Number:
004494526

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:
488-4D1-209990PARKER-HANNIFIN CORPORATION
488-4D1-286768TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
CONNECTION STYLEFLARED (TUBE) ALL ENDS
FLOW CONTROL DEVICEPOPPET
MATERIALALUMINUM ALLOY BODY
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MAXIMUM OPERATING TEMP200.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON 2ND RESPONSE
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, PHOSPHATE-ESTER BASE 3RD RESPONSE
MEDIA FOR WHICH DESIGNEDWATER, FRESH 4TH RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS 5TH RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS
SEAT ANGLE37.0 DEGREES ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTANODIZE
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD CLASS3A ALL ENDS
THREAD SERIES DESIGNATORUNF ALL ENDS
VALVE OPERATION METHODAUTOMATIC


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