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.
NSN 5996-00-325-6285
NSN 6220-01-071-2609
NSN 6320-01-173-7950
NSN 5990-00-230-8981
NSN 5998-00-336-2396
NSN 7035-01-058-1935
NSN 5930-01-106-6533
NSN 6240-01-484-9576
NSN 5920-00-431-5474
NSN 5835-00-477-3162
NSN 6685-01-094-5644
NSN 6130-01-090-5752