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 7035-00-185-8683
NSN 5990-00-952-7100
NSN 5920-00-940-2912
NSN 5975-01-363-2128
NSN 5855-01-562-2005
NSN 5835-00-588-2196
NSN 6685-00-097-6263
NSN 5985-01-346-2030
NSN 5950-01-528-7982
NSN 6150-01-468-6102
NSN 5915-00-463-9337
NSN 6150-00-689-7071