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National Stock Number:
4820-01-554-1235
Federal Supply Class:
4820
National Item Identification Number:
015541235
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:
| 2177525 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-2177525-M7D5AF MOD | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 810-2177525M745M0D600PSI | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 4.500 INCHES ALL ENDS | | BOLT HOLE NOMINAL DIAMETER | 0.875 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 4 ALL ENDS | | CONNECTION TYPE | FLANGE ALL ENDS | | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 4.750 INCHES | | FLANGE FACE DESIGN | RAISED STRAIGHT ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | PART NAME ASSIGNED BY CONTROLLING AGENCY | ANGLE STOP-CHECK WITH BACKSEAT | | MATERIAL | NICKEL ALLOY 400 BODY | | NOMINAL OUTSIDE DIAMETER | 6.125 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.875 INCHES ALL ENDS | | RAISED FACE NOMINAL DIAMETER | 2.875 INCHES ALL ENDS | | RAISED FACE NOMINAL HEIGHT | 0.250 INCHES ALL ENDS | | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 4.750 INCHES | | SPECIAL FEATURES | VALVE IS COMPLETELY ASBESTOS FREE | | STYLE DESIGNATOR | ANGLE FLANGED ENDS | | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL | | VALVE SIZE | 1.500 INCHES |
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