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 5915-01-429-5472
NSN 5925-01-004-9293
NSN 6645-01-502-3068
NSN 7035-01-258-7661
NSN 7035-01-138-5781
NSN 5920-01-318-6649
NSN 5945-01-236-4243
NSN 5975-01-610-7673
NSN 5925-01-150-0124
NSN 5925-01-590-7079
NSN 5855-01-315-6180
NSN 5930-01-150-0306