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 5996-01-503-0742
NSN 6685-01-453-6306
NSN 5910-01-261-2226
NSN 6110-01-311-8637
NSN 5930-00-518-6121
NSN 6650-00-910-2708
NSN 5895-01-010-1742
NSN 6110-01-339-8071
NSN 5855-00-361-0167
NSN 6645-01-258-5558
NSN 6240-01-345-9537
NSN 5965-01-067-9280