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 6105-01-106-4157
NSN 6135-00-789-2865
NSN 5975-00-817-1781
NSN 5950-01-460-8584
NSN 5930-01-435-4608
NSN 7035-00-585-2113
NSN 5905-00-256-1679
NSN 6645-01-595-4323
NSN 6650-00-181-8376
NSN 5945-01-537-3554
NSN 6220-01-100-9293
NSN 5975-01-570-4744