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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
27424 MORLAND VALVE CO INC SUB OF SMITH VA

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
MEDA MEDIA FOR WHICH DESIGNED STEAM SINGLE RESPONSE
ADSR BONNET TYPE OUTSIDE SCREW-YOKE
BBJX MOUNTING POSITION HORIZONTAL
FEAT SPECIAL FEATURES VALVE SIZE 3/4 IN.
AHNC CONNECTION STYLE SOCKET (PIPE) ALL ENDS
MATT MATERIAL STEEL CORROSION RESISTING STEM
ADST BONNET ATTACHMENT METHOD BOLTED
STYL STYLE DESIGNATOR STRAIGHT THRU
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ASTM A182,GRADE F11 ASSN STD SINGLE MATERIAL RESPONSE BODY
TEST TEST DATA DOCUMENT 81349-MIL-S-901 SPECIFICATION
ADQU FLOW CONTROL DEVICE DISK
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-R-17131,MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATT MATERIAL STEEL FLOW CONTROL DEVICE
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-R-17131,MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
AQLR VALVE OPERATION METHOD MANUAL
AEHZ MAXIMUM OPERATING TEMP 975.0 DEG FAHRENHEIT SINGLE RESPONSE
MATT MATERIAL STEEL BODY
AAAR NOMINAL PIPE SIZE ACCOMMODATED 0.750 INCHES ALL ENDS
AWLS CONNECTION TYPE UNTHREADED INTERNAL PIPE ALL ENDS
CQGM MAXIMUM OPERATING PRESSURE 1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MATT MATERIAL STEEL SEAT

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