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 6110-01-277-4595
NSN 5910-01-185-4151
NSN 5950-01-478-4829
NSN 6240-00-069-2946
NSN 5990-00-285-1948
NSN 5925-01-212-7249
NSN 5905-01-410-7780
NSN 5930-01-294-1903
NSN 5855-01-466-5353
NSN 6320-01-556-2011
NSN 6240-01-486-8317
NSN 6145-00-542-7980