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		                        | National Stock Number:
 4820-01-567-0142
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 015670142
 
 Description:
 VALVE,LIQUID-CHECK
 
 Detail:
 A NORMALLY OPEN VALVE WHICH PERMITS THE PASSAGE OF AIR OR GASES IN BOTH DIRECTIONS BUT PREVENTS THE PASSAGE OF LIQUIDS IN ONE DIRECTION. THE ACTION IS CONTROLLED BY A BUOYANT FLOW CONTROL DEVICE WHICH RISES AGAINST ITS SEAT WHEN LIQUIDS ARE PRESENT THEREIN.
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 Manufacturer Information:
 
 | 5022 | 28193 | HENRY TECHNOLOGIES, INC. |  | EAS81017-1 | 5RQL2 | DRS ENVIRONMENTAL SYSTEMS INC |  | EAS81017-1 | 90598 | ENGINEERED AIR SYSTEMS INC. DBA DRS SUSTAINMENT SYSTEMS |  | EAS81017-1 | 92878 | HDT EXPEDITIONARY SYSTEMS INC | 
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 Techincal Specification:
 
 | MATERIAL | STEEL OVERALL |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | VALVE, GAUGE, LIQUID UPPER |  | PROPRIETARY CHARACTERISTICS | PACS |  | MOUNTING POSITION | HORIZONTAL |  | SPECIAL FEATURES | 4.410 INCH LONG |  | VALVE OPERATION METHOD | AUTOMATIC |  | SURFACE TREATMENT | ZINC | 
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