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National Stock Number:
4820-00-516-1109
Federal Supply Class:
4820
National Item Identification Number:
005161109
Description:
VALVE,LIFT-CHECK
Detail:
A VALVE WITH A STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST POSITION, ONE SIDE OF THE VALVE DISK IS LOCATED AGAINST THE SEAT PERMITTING MOVEMENT OF THE DISK IN A MANNER THAT WILL ALLOW A FLOW OF FLUID IN ONE DIRECTION THROUGH THE VALVE. IN THE SECOND POSITION, THE VALVE DISK IS LIFTED FROM THE SEAT TO ALLOW A FLOW OF FLUID IN EITHER DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. SEE ALSO VALVE, STOP-CHECK AND VALVE, STOP-LIFT-CHECK.
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Manufacturer Information:
| 53270 | 99643 | EATON AEROSPACE LLC | | ST7M375-4 | 76301 | THE BOEING COMPANY | | ST7M375-4 | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| BONNET ATTACHMENT METHOD | INTEGRAL | | BONNET TYPE | INSIDE SCREW | | CONNECTION STYLE | PLAIN (TUBE) ALL ENDS | | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS | | FLOW CONTROL DEVICE | DISK | | MATERIAL | ALUMINUM ALLOY BODY | | MATERIAL | ALUMINUM ALLOY SEAT | | MAXIMUM OPERATING TEMP | 275.0 FAHRENHEIT SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE | | MOUNTING FACILITY | THREADED FASTENER | | MOUNTING POSITION | HORIZONTAL OR VERTICAL | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.312 INCHES ALL ENDS | | NOMINAL THREAD SIZE | 0.500 INCHES ALL ENDS | | SEAT ANGLE | 12.5 DEGREES ALL ENDS | | STYLE DESIGNATOR | STRAIGHT THRU | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MS 2400-3 ASSN STD SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | CADMIUM | | THREAD CLASS | 2A ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | UNF ALL ENDS | | VALVE OPERATION METHOD | MANUAL |
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