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 5985-00-377-6669
NSN 5998-01-500-1156
NSN 5835-01-386-4027
NSN 7035-01-625-5278
NSN 4140-01-529-6811
NSN 5965-01-067-9280
NSN 5920-00-897-4857
NSN 5905-01-630-2501
NSN 5895-00-051-0464
NSN 5930-00-489-2293
NSN 5925-00-074-9180
NSN 6240-01-182-7804