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 6620-00-656-5799
NSN 6105-01-512-1831
NSN 6610-01-224-6396
NSN 5835-00-223-7235
NSN 6110-01-364-0966
NSN 6645-00-802-7991
NSN 6240-01-327-7269
NSN 6240-01-415-5581
NSN 6220-00-864-4891
NSN 5965-01-122-7477
NSN 5990-00-462-9112
NSN 6240-01-413-6468