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 5905-01-359-5469
NSN 6320-01-381-7023
NSN 6220-01-089-8839
NSN 5960-01-029-9186
NSN 5950-00-726-1839
NSN 6110-00-436-1518
NSN 5996-00-183-7718
NSN 6145-00-170-7947
NSN 7035-00-495-2137
NSN 5975-00-727-6099
NSN 6610-01-435-3739
NSN 6145-01-230-1866