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 5960-01-536-9763
NSN 6105-01-555-8757
NSN 5998-01-557-3386
NSN 7035-00-155-9513
NSN 6620-00-231-8100
NSN 6145-00-805-5740
NSN 5996-01-371-2958
NSN 7035-00-631-3782
NSN 6650-00-267-9815
NSN 5905-01-357-4671
NSN 5965-01-431-7377
NSN 5905-00-011-7195