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 6105-01-336-2789
NSN 6150-00-630-7302
NSN 5835-01-099-8702
NSN 5998-00-845-4873
NSN 5996-00-525-1777
NSN 6150-00-286-0827
NSN 6645-01-168-8465
NSN 5835-01-434-0790
NSN 5975-00-556-9743
NSN 6650-00-133-5030
NSN 5999-01-461-4597
NSN 6220-00-396-0039