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 6685-01-245-9862
NSN 6240-01-291-1191
NSN 2925-00-238-1668
NSN 6240-00-204-9355
NSN 5999-00-297-3934
NSN 5950-01-630-3978
NSN 5855-00-973-5717
NSN 5930-01-577-5446
NSN 6130-01-152-2019
NSN 4140-01-108-9084
NSN 6150-01-407-0623
NSN 2925-01-412-9520