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 5835-00-419-6576
NSN 7035-01-024-9511
NSN 6135-01-490-7704
NSN 5996-01-578-6955
NSN 5990-01-340-3575
NSN 5996-00-079-8550
NSN 6105-01-211-2580
NSN 6645-00-658-7838
NSN 5960-01-505-2426
NSN 5905-01-170-2660
NSN 5996-01-371-2958
NSN 6240-01-217-5876