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National Stock Number: 4820-00-752-9959
Federal Supply Class: 4820
National Item Identification Number: 007529959
Description: VALVE,STOP-CHECK
Detail: A VALVE WITH A BOLT OR STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST POSITION, THE VALVE DISK IS LOCATED AND LOCKED AGAINST THE SEAT PERMITTING NO FLUID FLOW THROUGH THE VALVE. IN THE SECOND 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. THE VALVE DISK MAY BE SPRING LOADED. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. SEE ALSO VALVE (1), LIFT-CHECK AND VALVE (1), STOP-LIFT-CHECK.
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Manufacturer Information:
831 1IN | 34749 | ANVIL PRODUCTS INC SALES DEPT | B622-0-BC1D882039063 | 11859 | HUNT VALVE COMPANY, INC. | SPCL3652U | 14959 | CRANE CO DIV VALVE DIV | MILV22094 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
BONNET ATTACHMENT METHOD | BOLTED | BONNET TYPE | OUTSIDE SCREW-YOKE | CONNECTION TYPE | UNTHREADED INTERNAL TUBE 1ST END | CONNECTION STYLE | SOCKET (TUBE) ALL ENDS | FEATURES PROVIDED | BONNET PACKING | FLOW CONTROL DEVICE | DISK | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A182,GRADE F11 ASSN STD SINGLE MATERIAL RESPONSE BODY | MATERIAL | COBALT ALLOY FLOW CONTROL DEVICE | MATERIAL | COBALT ALLOY SEAT | MATERIAL | STEEL BODY | MATERIAL | STEEL CORROSION RESISTING STEM | MAXIMUM OPERATING TEMP | 975.0 FAHRENHEIT SINGLE RESPONSE | MAXIMUM OPERATING PRESSURE | 600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | MOUNTING POSITION | HORIZONTAL | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 1.000 INCHES 1ST END | NONDEFINITIVE SPEC/STD DATA | D COMPOSITION | STYLE DESIGNATOR | STRAIGHT THRU | VALVE OPERATION METHOD | MANUAL |
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