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 5895-01-117-4876
NSN 5945-01-421-3321
NSN 6130-01-634-0603
NSN 6645-01-025-1002
NSN 5996-00-661-1151
NSN 6320-01-465-2028
NSN 5895-01-452-0274
NSN 5915-00-829-9290
NSN 5999-01-050-4064
NSN 5925-01-647-4295
NSN 6320-01-501-7935
NSN 6110-01-398-6928