4820-00-189-4937, VALVE,STOP-CHECK

5935-00-189-4936 COVER,ELECTRICAL CONNECTOR

4720-00-189-4938 HOSE ASSEMBLY,NONMETALLIC

National Stock Number:
4820-00-189-4937

Federal Supply Class:
4820

National Item Identification Number:
001894937

Description:
VALVE,STOP-CHECK

Detail:
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.

Manufacturer Information:

803-4384536	80064	NAVAL SHIP SYSTEMS COMMAND
803-4384536-34A22	80064	NAVAL SHIP SYSTEMS COMMAND
810-1385722	53711	NAVAL SEA SYSTEMS COMMAND
810-4384536	53711	NAVAL SEA SYSTEMS COMMAND
803-4384536-34AXAF	80064	NAVAL SHIP SYSTEMS COMMAND
810-1385722	80064	NAVAL SHIP SYSTEMS COMMAND
810-4384536-34A22	53711	NAVAL SEA SYSTEMS COMMAND
810-4384536-34A22	80064	NAVAL SHIP SYSTEMS COMMAND
810-4384536	80064	NAVAL SHIP SYSTEMS COMMAND

Techincal Specification:

MATERIAL	COPPER ALLOY 922 BODY
	NICKEL ALLOY FLOW CONTROL DEVICE
	NICKEL ALLOY SEAT
	NICKEL ALLOY STEM
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-390,ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE BODY
	ASTM B164-61,CLASS A ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
	ASTM B164-61,CLASS A ASSN STD SINGLE MATERIAL RESPONSE SEAT
	ASTM B164-61,CLASS A ASSN STD SINGLE MATERIAL RESPONSE STEM
STYLE DESIGNATOR	ANGLE
FLOW CONTROL DEVICE	DISK
MEDIA FOR WHICH DESIGNED	STEAM 1ST RESPONSE
	WATER-OIL-GAS 2ND RESPONSE
MAXIMUM OPERATING PRESSURE	200.0 POUNDS PER SQUARE INCH 1ST RESPONSE
	400.0 POUNDS PER SQUARE INCH 2ND RESPONSE
MAXIMUM OPERATING TEMP	425.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD	MANUAL
CONNECTION TYPE	UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE	SOCKET WITH BRAZING RING (PIPE) ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED	0.500 INCHES ALL ENDS
MOUNTING POSITION	HORIZONTAL
RENEWABLE SEAT RING TYPE	THREADED
BONNET TYPE	INSIDE SCREW
BONNET ATTACHMENT METHOD	THREADED
FEATURES PROVIDED	BONNET PACKING
SPECIAL FEATURES	VALVE SIZE 0.500 IN.

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