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 5920-01-466-1485
NSN 6110-01-588-1623
NSN 5996-00-202-6576
NSN 6320-01-506-9439
NSN 6130-00-244-7593
NSN 5920-01-083-4995
NSN 5998-01-341-8646
NSN 6240-01-502-6405
NSN 4140-01-604-6894
NSN 6130-01-599-2025
NSN 6650-01-278-6645
NSN 5990-00-842-0781