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 6320-01-021-6633
NSN 6320-01-157-9076
NSN 6240-00-482-1142
NSN 6320-01-039-5891
NSN 5985-00-541-7714
NSN 6610-01-423-7481
NSN 5910-00-081-9173
NSN 6110-00-431-6898
NSN 5895-01-023-8446
NSN 5996-01-475-3592
NSN 2925-01-484-8556
NSN 6610-00-941-0509