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National Stock Number:
4820-01-540-6825
Federal Supply Class:
4820
National Item Identification Number:
015406825
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.
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Manufacturer Information:
| 803-1385541-044AF | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 6.562 INCHES ALL ENDS | | BOLT HOLE NOMINAL DIAMETER | 0.563 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 8 ALL ENDS | | CONNECTION TYPE | FLANGE ALL ENDS | | FURNISHED ITEMS AND QUANTITY | 1 HANDWHEEL | | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 6.000 INCHES | | FLANGE FACE DESIGN | PLAIN ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | FLOW CONTROL DEVICE | DISK | | PART NAME ASSIGNED BY CONTROLLING AGENCY | ANGLE STOP CHECK VALVE WITHOUT SEALING COMPOUND, 4 INCH | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY | | MATERIAL | COPPER ALLOY BODY | | NOMINAL OUTSIDE DIAMETER | 7.687 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.500 INCHES ALL ENDS | | SPECIAL FEATURES | ASBESTOS FREE | | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 6.000 INCHES | | STYLE DESIGNATOR | ANGLE FLANGED ENDS | | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL | | VALVE SIZE | 4.000 INCHES |
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