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 6610-01-486-4522
NSN 6645-01-417-6031
NSN 5996-00-163-4950
NSN 6130-01-183-5604
NSN 6240-00-031-3112
NSN 5895-01-576-3576
NSN 5835-01-502-9228
NSN 6105-00-618-4401
NSN 6130-01-116-2100
NSN 5925-00-455-2181
NSN 5835-01-535-0948
NSN 6220-00-330-3717