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 5950-01-655-6907
NSN 5985-01-519-9295
NSN 5999-01-459-1418
NSN 5915-00-458-4953
NSN 5950-01-100-1193
NSN 4140-01-467-3620
NSN 5835-00-233-6327
NSN 5990-00-263-1289
NSN 6145-00-113-3911
NSN 5905-01-303-6729
NSN 6650-01-075-8355
NSN 7035-00-312-3055