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 6150-00-455-7996
NSN 6150-00-476-7113
NSN 5999-01-053-5499
NSN 6650-00-754-2276
NSN 6320-00-394-8458
NSN 5950-01-463-3096
NSN 5910-01-261-2226
NSN 5960-01-306-4606
NSN 5925-00-469-7683
NSN 6110-00-663-4054
NSN 6620-01-377-8178
NSN 6150-00-914-1018