Y swing check type
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.
Classification: Check valves of copper having a pressure rating of 850 kpa or over
NSN 5965-00-518-0958
NSN 6320-01-585-8468
NSN 4140-01-362-7117
NSN 5835-01-647-6426
NSN 5910-00-608-6524
NSN 6220-00-494-4437
NSN 5920-00-776-0633
NSN 6240-01-512-8129
NSN 5950-01-586-3648
NSN 6145-01-484-8735
NSN 6685-00-292-3691
NSN 6620-01-293-6241