4820-01-301-9076 VALVE,CHECK Index 4820-01-301-9078 VALVE,CHECK

National Stock Number:
4820-01-301-9077

Federal Supply Class:
4820

National Item Identification Number:
013019077

Description:
VALVE,VACUUM BREAKING

Detail:
AN ITEM DESIGNED TO AUTOMATICALLY RELIEVE VACUUM, BY THE INTAKE OF AIR, WHEN THE INTERNAL PRESSURE FALLS BELOW ATMOSPHERIC PRESSURE. SEE ALSO VALVE, VACUUM REGULATING.


Manufacturer Information:
715A12501CMB INDUSTRIES FEBCO DIV
715A3-4IN12501CMB INDUSTRIES FEBCO DIV
8AC79227WATTS REGULATOR CO


Techincal Specification:
END CONNECTION QUANTITY2
FIRST END CONNECTION TYPETHREADED INTERNAL PIPE
FIRST END NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES
FIRST END NOMINAL THREAD SIZE0.750 INCHES
FIRST END STYLE DESIGNATORPLAIN
FIRST END THREAD CLASS2B
FIRST END THREAD DIRECTIONRIGHT-HAND
FIRST END THREAD SERIES DESIGNATORNPT
FLOW CONTROL DEVICEDISK, FLAT
MATERIALCOPPER ALLOY BODY
MATERIALRUBBER FLOW CONTROL DEVICE
SECOND END CONNECTION TYPETHREADED EXTERNAL PIPE
SECOND END NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES
SECOND END NOMINAL THREAD SIZE0.750 INCHES
SECOND END THREAD CLASS3A
SECOND END THREAD DIRECTIONRIGHT-HAND
SECOND END THREAD SERIES DESIGNATORNPT
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SECOND END STYLE DESIGNATORPLAIN
SURFACE TREATMENTCHROMIUM OUTSIDE


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