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National Stock Number:
4820-01-290-4204
Federal Supply Class:
4820
National Item Identification Number:
012904204
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:
| SS70-905N-4J | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS | | CONNECTION STYLE | FLARELESS ALL ENDS | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | DISK | | MATERIAL | STEEL COMP 304 BODY | | MATERIAL | STEEL COMP 630 FLOW CONTROL DEVICE | | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL OR VERTICAL | | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS | | SEAT ANGLE | 12.0 DEGREES ALL ENDS | | SURFACE TREATMENT | PASSIVATE | | THREAD CLASS | 3A ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | UNJF ALL ENDS | | VALVE OPERATION METHOD | AUTOMATIC |
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