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 5965-00-527-8818
NSN 5950-01-417-4989
NSN 5999-01-109-5877
NSN 6645-01-347-0450
NSN 5895-01-461-4557
NSN 5950-01-378-6332
NSN 6645-01-252-8870
NSN 6610-00-191-5317
NSN 6130-01-195-1731
NSN 5998-00-072-0959
NSN 5910-00-305-9353
NSN 6105-01-123-8887