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National Stock Number: 4820-01-141-8559
Federal Supply Class: 4820
National Item Identification Number: 011418559
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:
| NS-3205 | 11836 | NATIONAL OILWELL | | NS-3205-2 1/2IN | 11836 | NATIONAL OILWELL |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 5.000 INCHES ALL ENDS | | BOLT HOLE NOMINAL DIAMETER | 0.688 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 6 ALL ENDS | | CONNECTION TYPE | FLANGE ALL ENDS | | DISK LOADING METHOD | WEIGHT | | FACE TO FACE DISTANCE | 10.500 INCHES | | FLANGE FACE DESIGN | PLAIN ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | FLOW CONTROL DEVICE | DISK | | MATERIAL | NICKEL ALLOY OVERALL | | MEDIA FOR WHICH DESIGNED | WATER, FRESH SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 6.125 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.938 INCHES ALL ENDS | | OPERATING PRESSURE | 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | VALVE OPERATION METHOD | AUTOMATIC | | VALVE SIZE | 2.500 INCHES | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |
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