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		                        | National Stock Number:
 4820-00-470-6588
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 004706588
 
 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:
 
 | UH21728 | 12736 | CLAYTON MANUFACTURING COMPANY | 
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 Techincal Specification:
 
 | MATERIAL | STEEL BODY |  | SURFACE TREATMENT | PAINT |  | STYLE DESIGNATOR | ANGLE |  | FLOW CONTROL DEVICE | DISK |  | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS 1ST RESPONSE |  |  | STEAM 2ND RESPONSE |  | MAXIMUM OPERATING PRESSURE | 1000.0 POUNDS PER SQUARE INCH 1ST RESPONSE |  |  | 350.0 POUNDS PER SQUARE INCH 2ND RESPONSE |  | VALVE OPERATION METHOD | AUTOMATIC |  | CONNECTION TYPE | THREADED INTERNAL TUBE ALL ENDS |  | CONNECTION STYLE | FLARE (TUBE) ALL ENDS |  | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 1.812 INCHES ALL ENDS |  | THREAD SERIES DESIGNATOR | UN ALL ENDS |  | NOMINAL THREAD SIZE | 1.812 INCHES ALL ENDS |  | THREAD QUANTITY PER INCH | 12 ALL ENDS |  | THREAD CLASS | 2B ALL ENDS |  | THREAD DIRECTION | RIGHT-HAND ALL ENDS |  | MOUNTING POSITION | VERTICAL |  | DISK LOADING METHOD | SPRING | 
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