5930-01-535-4070 SWITCH,PRESSURE Index 1680-01-535-4072 BELL CRANK

National Stock Number:
4820-01-535-4071

Federal Supply Class:
4820

National Item Identification Number:
015354071

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:
803-1385541-033AF80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
MATERIALCOPPER ALLOY 922 BODY
NICKEL ALLOY FLOW CONTROL DEVICE
GRAPHITE PACKING
NICKEL ALLOY SEAT
NICKEL ALLOY STEM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
ASTM A494 M30C ASSN STD SINGLE MATERIAL RESPONSE OR
QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MIL-24503 TY II CL 2 GR N MIL SPEC 1ST MATERIAL RESPONSE AND
MIL-P-24583 CL 2 GR N FED SPEC 2ND MATERIAL RESPONSE PACKING
ASTM A494 M30H ASSN STD SINGLE MATERIAL RESPONSE SEAT
ASTM B164 ASSN STD SINGLE MATERIAL RESPONSE OR
QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
VALVE SIZE3.000 INCHES
FACE TO FACE DISTANCE10.000 INCHES
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHODMANUAL OR
AUTOMATIC
CONNECTION TYPEFLANGE ALL ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER6.625 INCHES ALL ENDS
NOMINAL THICKNESS0.500 INCHES ALL ENDS
BOLT HOLE QUANTITY8 ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.562 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER5.500 INCHES ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
RAISED FACE NOMINAL DIAMETER3.000 INCHES ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED3.000 INCHES ALL ENDS
MOUNTING POSITIONHORIZONTAL OR
VERTICAL
RENEWABLE SEAT RING TYPETHREADED
BONNET TYPEOUTSIDE SCREW-YOKE
BONNET ATTACHMENT METHODBOLTED
FURNISHED ITEMS AND QUANTITY1 HANDWHEEL
SPECIAL FEATURESSUITABLE FOR SALT WATER SERVICE; TECH MANUAL 0948-LP-012-5000
TEST DATA DOCUMENT81349-MIL-S-901D INTERIM CHANGE I FOR LIGHTWEIGHT EQUIP0.81349-MIL-S-901D INTERIM CHANGE I FOR LIGHTWEIGHT EQUIP0GR A CL I TY A SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). AND
MIL-STD-167 TY I STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).


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