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 5985-01-046-5595
NSN 5910-01-063-7096
NSN 5945-00-276-3189
NSN 6150-00-081-6030
NSN 5990-01-147-5225
NSN 5950-00-181-9285
NSN 6650-01-252-7701
NSN 6240-01-258-5829
NSN 6685-01-114-1697
NSN 6220-01-421-4448
NSN 6620-01-184-7384
NSN 5895-00-198-5537