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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
32373 SFC VALVE CORP

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
MATT MATERIAL STEEL CORROSION RESISTING SEAT
AHNC CONNECTION STYLE SOCKET (PIPE) 1ST END
AAAR NOMINAL PIPE SIZE ACCOMMODATED 0.500 INCHES 1ST END
ADSR BONNET TYPE OUTSIDE SCREW-YOKE
ADST BONNET ATTACHMENT METHOD BOLTED
STYL STYLE DESIGNATOR STRAIGHT THRU
BBJX MOUNTING POSITION HORIZONTAL OR VERTICAL
AQLR VALVE OPERATION METHOD MANUAL
SUPP SUPPLEMENTARY FEATURES FLOW CONTROL DEVICE: STEM
MATT MATERIAL STEEL BODY
ZZZT NONDEFINITIVE SPEC/STD DATA B1 COMPOSITION AND 1500.0 RATING AND 0.500 SIZE
AWLS CONNECTION TYPE UNTHREADED INTERNAL PIPE 1ST END
ZZZW DEPARTURE FROM CITED DOCUMENT QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1
MATT MATERIAL STEEL STEM

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