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National Stock Number:
4820-00-061-6637
Federal Supply Class:
4820
National Item Identification Number:
000616637
Description:
VALVE,LIFT-CHECK
Detail:
A VALVE WITH A STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST 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. IN THE SECOND POSITION, THE VALVE DISK IS LIFTED FROM THE SEAT TO ALLOW A FLOW OF FLUID IN EITHER DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. SEE ALSO VALVE, STOP-CHECK AND VALVE, STOP-LIFT-CHECK.
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Manufacturer Information:
| 2620-911 ASSY 8B | 96169 | ELECTRIC BOAT CORPORATION | | 2620-911 ASSY 8B | 99565 | ADMIRAL VALVE LLC | | 2620-911 ASSY 8BL1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | SS845-1889538 ASSY 8B | 80064 | NAVAL SHIP SYSTEMS COMMAND | | SS845-1889538 ASSY 8BL1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |
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Techincal Specification:
| BONNET ATTACHMENT METHOD | THREADED | | BONNET TYPE | INSIDE SPRING | | CONNECTION TYPE | FLANGE 1ST END | | CRITICALITY CODE JUSTIFICATION | ZZZY | | FLOW CONTROL DEVICE | DISK | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS | | VALVE OPERATION METHOD | AUTOMATIC | | VALVE SIZE | 2.000 INCHES |
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