4820-00-922-8424, VALVE,STOP-CHECK

National Stock Number:
4820-00-922-8424

Federal Supply Class:
4820

National Item Identification Number:
009228424

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:

2620-902ASSYE3-4INL1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
524-1 3-4INL1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
SS845-1889587ASSYE3-4INL1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
SS845-1889587ASSYE3-4IN	80064	NAVAL SHIP SYSTEMS COMMAND

Techincal Specification:

MATERIAL	COPPER ALLOY 922 BODY
	NICKEL ALLOY 400 OR
	NICKEL ALLOY R-405 STEM
STYLE DESIGNATOR	STRAIGHT THRU
FLOW CONTROL DEVICE	DISK
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE	700.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP	150.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD	MANUAL
CONNECTION TYPE	UNTHREADED INTERNAL PIPE 1ST END
CONNECTION STYLE	SOCKET WITH BRAZING RING (PIPE) 1ST END
NOMINAL PIPE SIZE ACCOMMODATED	0.750 INCHES 1ST END
MOUNTING POSITION	HORIZONTAL
RENEWABLE SEAT RING TYPE	THREADED
BONNET TYPE	INSIDE SCREW
BONNET ATTACHMENT METHOD	UNION
FEATURES PROVIDED	BONNET PACKING
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	QUALITY ASSURANCE TESTING IN ACCORDANCE WITH NAVY LEVEL 1 ASSURANCE GUIDE
CRITICALITY CODE JUSTIFICATION	ZZZY
THE MANUFACTURERS DATA
MANUFACTURERS CODE	80064
DESIGN CONTROL REFERENCE	SS845-1889587ASSYE3-4IN

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