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 6610-01-385-1771
NSN 7035-01-434-6134
NSN 6320-01-108-5933
NSN 5985-00-064-6416
NSN 6130-00-081-2186
NSN 5935-01-509-1518
NSN 5985-01-407-6148
NSN 6685-01-576-9843
NSN 5965-00-170-5254
NSN 2925-00-149-0760
NSN 6320-00-004-9158
NSN 5835-00-231-9544