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 6150-00-951-9827
NSN 5960-00-597-2680
NSN 7035-00-275-5604
NSN 5998-01-422-2615
NSN 5835-00-675-5159
NSN 6650-01-088-3134
NSN 5965-00-564-4399
NSN 6135-01-390-1841
NSN 6610-01-458-9614
NSN 6130-01-549-1625
NSN 6620-01-472-6461
NSN 6105-00-414-8539