National Stock Number:
4820-99-764-9898
Federal Supply Class:
4820
National Item Identification Number:
997649898
Description:
VALVE,VACUUM BREAKI
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.
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