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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
12168 NORTHERN INDIANA BUSINESS SERVICES

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
AHNC CONNECTION STYLE SOCKET WITH BRAZING RING (PIPE) ALL ENDS
CBBL FEATURES PROVIDED BONNET PACKING
MATT MATERIAL COPPER ALLOY FLOW CONTROL DEVICE
ADSR BONNET TYPE INSIDE SCREW
MATT MATERIAL COPPER ALLOY STEM
STYL STYLE DESIGNATOR ANGLE
BBJX MOUNTING POSITION HORIZONTAL OR VERTICAL
ADQU FLOW CONTROL DEVICE DISK
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-C-390,ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE BODY
AQLR VALVE OPERATION METHOD MANUAL
MEDA MEDIA FOR WHICH DESIGNED STEAM 1ST RESPONSE
MEDA MEDIA FOR WHICH DESIGNED WATER-OIL-GAS 2ND RESPONSE
MATT MATERIAL COPPER ALLOY 922 SEAT
CQGM MAXIMUM OPERATING PRESSURE 400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
AWLS CONNECTION TYPE UNTHREADED INTERNAL PIPE ALL ENDS
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-C-390, ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE SEAT
ADST BONNET ATTACHMENT METHOD UNION
AEHZ MAXIMUM OPERATING TEMP 500.0 DEG FAHRENHEIT SINGLE RESPONSE
MATT MATERIAL COPPER ALLOY 922 BODY
AAAR NOMINAL PIPE SIZE ACCOMMODATED 2.500 INCHES ALL ENDS

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