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 5999-01-480-7551
NSN 6685-01-333-1078
NSN 5975-01-564-1075
NSN 6685-00-088-3562
NSN 5855-01-634-0259
NSN 7035-01-371-0091
NSN 6220-00-276-8681
NSN 5920-01-604-7087
NSN 5975-01-291-2373
NSN 5905-00-939-1948
NSN 5910-01-500-1073
NSN 5985-01-497-8017