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 5935-00-489-0481
NSN 5905-01-326-9814
NSN 6620-01-119-3396
NSN 6110-00-032-2596
NSN 5996-01-146-5765
NSN 5960-01-134-4099
NSN 6650-01-050-4809
NSN 5925-01-279-1689
NSN 5985-01-287-9365
NSN 5935-00-144-8017
NSN 5950-01-514-2363
NSN 6220-01-034-1231