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 5965-01-560-7561
NSN 5920-01-009-8121
NSN 5975-01-110-3600
NSN 5998-01-381-2986
NSN 6650-01-491-2008
NSN 6645-01-251-7887
NSN 5999-01-143-5895
NSN 5998-01-361-4989
NSN 6220-01-440-5443
NSN 5930-01-218-5497
NSN 5835-01-143-9143
NSN 6620-01-454-8926