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 5990-01-123-4226
NSN 6220-00-468-5801
NSN 5905-01-421-8288
NSN 5895-01-421-3508
NSN 6620-00-762-0349
NSN 5998-01-020-8986
NSN 6645-01-423-9361
NSN 6645-01-336-6631
NSN 7035-00-135-4758
NSN 6220-01-363-0469
NSN 5855-01-551-7923
NSN 5990-01-463-2279