4820-01-043-1958 VALVE,CHECK Index 4820-01-043-1960 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-043-1959

Federal Supply Class:
4820

National Item Identification Number:
010431959

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:
70-596-1IN48422WILLIAM POWELL COMPANY THE DBA POWELL VALVE DIV THE STARFLO CORPORATION
70-596-1INCP03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG


Techincal Specification:
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
CRITICALITY CODE JUSTIFICATIONZZZY
DISK LOADING METHODWEIGHT
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY BODY
MATERIALPLASTIC POLYCHLOROTRIFLUOROETHYLENE FLOW CONTROL DEVICE
MAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDNITROGEN, LIQUID 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDOXYGEN, LIQUID 2ND RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE1.000 INCHES ALL ENDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
VALVE OPERATION METHODAUTOMATIC


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