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 5945-01-348-3485
NSN 6105-01-363-9225
NSN 5999-00-548-2060
NSN 6105-00-598-4910
NSN 6620-01-187-7267
NSN 6135-01-400-2947
NSN 6685-01-513-3737
NSN 6650-01-473-7723
NSN 5965-00-752-5823
NSN 6130-00-512-8692
NSN 6150-00-499-2742
NSN 6135-01-027-7543