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 6105-01-159-4271
NSN 5998-01-227-0932
NSN 5960-00-249-9623
NSN 5910-00-130-5460
NSN 5905-01-644-3356
NSN 4140-01-363-2258
NSN 6105-00-133-6038
NSN 5930-01-265-2022
NSN 6110-01-074-0835
NSN 6650-00-947-4380
NSN 5920-01-140-7297
NSN 6620-00-394-1812