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 5925-00-576-8179
NSN 6150-01-185-4993
NSN 6685-01-414-5516
NSN 6610-01-580-8932
NSN 5895-01-386-3049
NSN 6620-00-820-9616
NSN 6150-01-355-0421
NSN 7035-00-200-5162
NSN 6620-01-472-6461
NSN 6685-00-261-9858
NSN 5905-01-248-7035
NSN 6220-00-409-8978