5945-01-451-6808 RELAY,ELECTROMAGNETIC Index 7930-01-451-6810 DETERGENT,UTILITY

National Stock Number:
4930-01-451-6809

Federal Supply Class:
4930

National Item Identification Number:
014516809

Description:
VENT UNIT,RELIEF

Detail:
A SPRING LOADED DEVICE EQUIPPED WITH AUTOMATIC PRESSURE AND VACUUM RELIEF VALVES TO RELIEVE DRUM STRUCTURE OF EXCESSIVE VAPOR PRESSURE BUILD-UPS AND PROVIDE FOR VACUUM RELIEF TO FACILITATE LIQUID FLOW. IT ALSO SERVES AS A FILLING UNIT WITH REMOVABLE CAP WITH CHAIN ATTACHMENT.


Manufacturer Information:
31272-182205BELFORT INSTRUMENT COMPANY
62828-90352-20J8A4AWI SYSTEMS MANAGEMENT INC
62828-90352-297384TEXTRON SYSTEMS CORPORATION


Techincal Specification:
SPECIAL FEATURESSTATIC PRESSURE VENT; 5.12 IN W X 3.55 IN H; .750 IPT; ITEM SHALL MINIMIZE THE ERROR OF BAROMETRIC PRESSURE MEASUREMENT DUE TO WIND SPEED; SHALL DELIVER AT ITS OUTPUT MEASUREMENT PORT A REPRESENTATION OF STATIC AMBIENT ATMOSPHERIC PRESSURE ACCURATE WITHIN +/-0.014 IN. HG WHEN EXPOSED TO WIND UP TO 30 KNOTS AT ANY AZIMUTH AND AT NORMAL INCIDENCE IN ELEVATION


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