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 6240-00-681-2795
NSN 6610-00-107-1944
NSN 6650-01-294-1067
NSN 6110-01-259-9848
NSN 5945-01-461-3060
NSN 5910-00-177-4472
NSN 5855-01-377-7112
NSN 6135-01-563-4445
NSN 5925-01-624-8671
NSN 6150-01-142-4684
NSN 7035-00-834-2090
NSN 5895-00-244-3524