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		                        | National Stock Number:
 4820-01-554-8679
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 015548679
 
 Description:
 VALVE,CHECK
 
 Detail:
 A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
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 Manufacturer Information:
 
 | 3/8 SD-3-MN | 79227 | WATTS REGULATOR CO |  | SD-3-MN | 79227 | WATTS REGULATOR CO |  | SD-3-MN 3/8IN | 79227 | WATTS REGULATOR CO | 
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 Techincal Specification:
 
 | MATERIAL | STEEL COMP 316 BODY |  | VALVE SIZE | 0.375 INCHES |  | FACE TO FACE DISTANCE | 1.875 INCHES |  | VALVE OPERATION METHOD | AUTOMATIC |  | SPECIAL FEATURES | DUAL CHECK WITH ATMOSPHERIC PORT DESIGNED FOR THE PROTECTION OF THE WATER SUPPLY FROM CARBON DIOXIDE GAS AND CARBONATED WATER |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | BACKFLOW PREVENTER WATTS SD-3 | 
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