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 5910-01-434-2550
NSN 6240-01-381-1072
NSN 5996-00-007-1384
NSN 5965-00-225-1848
NSN 5998-01-114-4868
NSN 5855-01-506-4610
NSN 5990-00-932-3070
NSN 6645-01-108-3457
NSN 6610-00-112-2698
NSN 6135-00-110-1981
NSN 5835-00-198-4936
NSN 5925-00-798-3851