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 7035-00-703-3535
NSN 5998-00-115-7561
NSN 5905-01-295-6892
NSN 5925-01-253-2765
NSN 6150-01-020-8983
NSN 6620-01-633-8443
NSN 5925-00-128-9376
NSN 2925-01-131-4531
NSN 5960-01-541-5734
NSN 6650-00-356-8405
NSN 5835-00-104-2511
NSN 5835-01-555-8963