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 5835-00-315-3797
NSN 5945-01-141-5570
NSN 5915-00-278-5561
NSN 6320-01-240-4637
NSN 6145-00-069-2837
NSN 7035-01-478-0212
NSN 5996-00-878-0273
NSN 6650-01-063-0035
NSN 6110-01-644-9641
NSN 6105-01-457-6198
NSN 7035-01-173-0529
NSN 6685-00-574-7538