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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
71905 DERBYSHIRE MACHINE & TOOL CO DIV DER

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
ADSR BONNET TYPE INSIDE SCREW
ADSR BONNET TYPE INSIDE SCREW
CBBL FEATURES PROVIDED VALVE STEM LOCK SHIELD
STYL STYLE DESIGNATOR ANGLE
AAAR NOMINAL PIPE SIZE ACCOMMODATED 1.000 INCHES 1ST END
TMQY FURNISHED ITEMS AND QUANTITY 2 NUT
CQGM MAXIMUM OPERATING PRESSURE 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
AQLR VALVE OPERATION METHOD MANUAL
ADSU DISK LOADING METHOD SPRING
AWLS CONNECTION TYPE UNTHREADED INTERNAL PIPE 1ST END
ADST BONNET ATTACHMENT METHOD THREADED
AHNC CONNECTION STYLE SOCKET WITH BRAZING RING (PIPE) 1ST END

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