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 5895-00-420-7042
NSN 6620-00-197-5130
NSN 6650-01-620-7776
NSN 5990-01-113-8121
NSN 5996-00-489-0595
NSN 6105-01-490-6551
NSN 6610-01-027-1641
NSN 6220-01-104-9404
NSN 5895-00-809-4005
NSN 7035-00-286-6221
NSN 6135-00-170-8819
NSN 6130-01-433-4982