4820-01-142-4254 VALVE,CHECK Index 4820-01-142-4256 VALVE,RELIEF,PRESSURE AND TEMPERATURE

National Stock Number:
4820-01-142-4255

Federal Supply Class:
4820

National Item Identification Number:
011424255

Description:
VALVE,SHUTTLE

Detail:
A VALVE HAVING ONE OUTLET AND TWO INLETS THAT ARE USUALLY OPPOSITE EACH OTHER. IT HAS A FLUID PRESSURE OPERATED PISTONLIKE ITEM, CALLED A SHUTTLE, THAT CONTROLS EITHER INLET. IT IS COMMONLY USED TO PROVIDE AN EMERGENCY PASSAGE FOR FLUID IN AN AIRCRAFT HYDRAULIC OR PNEUMATIC SYSTEM IN CASE OF LOSS OF PRESSURE IN THE NORMAL SERVICE LINES.


Manufacturer Information:
10124638A486GNIMIKKEISTOKESKUS NCB FINLAND
1B4812518355THE BOEING COMPANY
5077-206177PNEUDRAULICS, INC.
1B48125-118355THE BOEING COMPANY


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONFEAT
FLOW CONTROL DEVICEPISTON
MAXIMUM OPERATING TEMP275.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
VALVE DISCHARGE FLOW RATE1.2 GALLONS PER MINUTE
VALVE OPERATION METHODAUTOMATIC


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