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 6645-01-104-6540
NSN 6650-00-629-8027
NSN 7035-01-364-0286
NSN 6320-01-547-2743
NSN 6620-01-435-2784
NSN 5945-01-349-0897
NSN 5855-01-510-2898
NSN 2925-01-012-3162
NSN 5960-01-470-1579
NSN 5910-01-476-2092
NSN 5985-01-050-2416
NSN 5835-01-535-8470