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 5925-00-859-7942
NSN 7035-00-946-2642
NSN 6130-01-522-2994
NSN 6220-01-409-0451
NSN 6610-01-633-8931
NSN 6135-01-437-6409
NSN 5998-01-197-7346
NSN 6685-01-500-3031
NSN 6645-00-221-1058
NSN 5999-01-040-9525
NSN 5990-01-191-9624
NSN 5835-00-644-4512