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 7035-00-631-3782
NSN 5996-01-530-1894
NSN 6110-01-500-0768
NSN 5895-01-184-2499
NSN 6105-01-197-2901
NSN 5945-01-627-0149
NSN 2925-00-902-3881
NSN 6135-01-422-1440
NSN 6620-00-858-0715
NSN 5945-01-218-4022
NSN 5985-01-294-4481
NSN 5960-00-636-4834