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Part Number

Part Number:
NSN:
NIIN:
Item Name:
VALVE , STOP-CHECK

Definition:

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.

CAGE Information

Code Company
48422 WILLIAM POWELL COMPANY THE DBA POWEL

Federal Supply Class

Title

VALVES, NONPOWERED

Inclusions:

INCLUDES AUTOMATIC NONPOWERED VALVES; GATE, GLOBE, ANGLE, CHECK, AND RELIEF VALVES; COCKS.

Exclusions:

EXCLUDES FIRE HYDRANTS (FSC 4210); SPRINKLER HEADS (FSC 4210); VALVES SPECIFICALLY DESIGNED FOR USE WITH FIRE FIGHTING EQUIPMENT (FSC 4210); PLUMBING EQUIPMENT, AND THE LIKE (FSC 4540).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CRTL CRITICALITY CODE JUSTIFICATION ZZZY
ADSR BONNET TYPE OUTSIDE SCREW-YOKE
AEHZ MAXIMUM OPERATING TEMP 150.0 DEG FAHRENHEIT SINGLE RESPONSE
BBJX MOUNTING POSITION HORIZONTAL
AWLS CONNECTION TYPE BUTT WELD PIPE 1ST END
STYL STYLE DESIGNATOR STRAIGHT THRU
ZZZY REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
AAAR NOMINAL PIPE SIZE ACCOMMODATED 1.000 INCHES 1ST END
ADQU FLOW CONTROL DEVICE DISK
AQLR VALVE OPERATION METHOD MANUAL
MATT MATERIAL STEEL CORROSION RESISTING BODY
AHNC CONNECTION STYLE BEVELED (PIPE) 1ST END
ADST BONNET ATTACHMENT METHOD THREADED
MEDA MEDIA FOR WHICH DESIGNED WATER-OIL-GAS SINGLE RESPONSE
CQGM MAXIMUM OPERATING PRESSURE 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE

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