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National Stock Number:
4820-01-554-1395
Federal Supply Class:
4820
National Item Identification Number:
015541395
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:
| 803-2177525-C7C5AF | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 5.000 INCHES ALL ENDS | | BOLT HOLE NOMINAL DIAMETER | 0.812 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 4 ALL ENDS | | BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | OUTSIDE SCREW-YOKE | | CONNECTION TYPE | FLANGE ALL ENDS | | FACE TO FACE DISTANCE | 9.500 INCHES | | FLANGE FACE DESIGN | RAISED STRAIGHT ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | OPERATING PRESSURE | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | MATERIAL | STEEL OVERALL | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL OR VERTICAL | | NOMINAL OUTSIDE DIAMETER | 6.125 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.875 INCHES ALL ENDS | | PART NAME ASSIGNED BY CONTROLLING AGENCY | IN-LINE THROTTLE STOP-CHECK WITH BACKSEAT | | RAISED FACE NOMINAL DIAMETER | 2.875 INCHES ALL ENDS | | RAISED FACE NOMINAL HEIGHT | 0.250 INCHES ALL ENDS | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 1.500 INCHES | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |
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