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 6650-01-142-6438
NSN 5905-01-357-7271
NSN 6645-01-159-1489
NSN 2925-01-112-8782
NSN 6110-01-481-1994
NSN 6610-00-575-7933
NSN 5985-01-654-8942
NSN 5996-00-495-3086
NSN 5935-01-513-9623
NSN 5905-01-235-2565
NSN 6320-01-115-4404
NSN 2925-01-274-8576