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 5920-00-529-0618
NSN 5835-01-416-6449
NSN 6320-01-173-7950
NSN 5835-00-510-0890
NSN 5930-01-364-3691
NSN 5895-01-057-0061
NSN 5975-00-035-6524
NSN 5920-00-060-0360
NSN 2925-00-157-0127
NSN 7035-00-679-9027
NSN 5998-01-627-5806
NSN 6110-01-630-5572