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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
03950 NAVAL INVENTORY CONTROL POINT MECHAN

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
CBBL FEATURES PROVIDED BONNET PACKING
CBBL FEATURES PROVIDED BONNET PACKING
ADSR BONNET TYPE INSIDE SCREW
CRTL CRITICALITY CODE JUSTIFICATION ZZZY
AHNC CONNECTION STYLE REDUCED SOCKET WITH ONE BRAZING RING (PIPE) 1ST END
MATT MATERIAL NICKEL ALLOY 400 STEM OR NICKEL ALLOY R-405 STEM
STYL STYLE DESIGNATOR STRAIGHT THRU
BBJX MOUNTING POSITION HORIZONTAL OR VERTICAL
ADZH RENEWABLE SEAT RING TYPE THREADED
AAAR NOMINAL PIPE SIZE ACCOMMODATED 1.500 INCHES 1ST END
ADQU FLOW CONTROL DEVICE DISK
CQGM MAXIMUM OPERATING PRESSURE 700.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
ZZZY REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
AQLR VALVE OPERATION METHOD MANUAL
MATT MATERIAL NICKEL ALLOY 400 FLOW CONTROL DEVICE OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE
AWLS CONNECTION TYPE UNTHREADED INTERNAL PIPE 1ST END
MATT MATERIAL NICKEL ALLOY 400 SEAT OR NICKEL ALLOY R-405 SEAT
MEDA MEDIA FOR WHICH DESIGNED WATER-OIL-GAS SINGLE RESPONSE
ADST BONNET ATTACHMENT METHOD UNION
MATT MATERIAL COPPER ALLOY 922 BODY

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