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 4140-00-337-3606
NSN 6150-01-648-6526
NSN 5975-01-079-7084
NSN 6650-01-139-5238
NSN 5855-00-237-4088
NSN 6135-00-107-6662
NSN 5996-00-583-0607
NSN 6645-00-243-9470
NSN 5985-01-391-7404
NSN 6130-00-889-7693
NSN 5945-01-178-4236
NSN 6110-01-047-5674