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 4140-00-051-9581
NSN 5910-01-258-4887
NSN 6645-00-359-5463
NSN 5930-00-358-3225
NSN 6105-00-801-2629
NSN 6650-01-481-3618
NSN 5920-01-329-3670
NSN 6130-00-453-9204
NSN 6645-00-401-5563
NSN 5975-00-706-2938
NSN 6610-01-519-7297
NSN 2925-01-197-7864