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 5935-01-025-5111
NSN 2925-01-208-6638
NSN 5985-00-522-5495
NSN 6620-01-122-8886
NSN 5990-01-170-0077
NSN 5920-01-411-5423
NSN 5905-01-268-4475
NSN 5930-01-437-9081
NSN 6150-01-475-9633
NSN 5920-01-167-5884
NSN 6145-00-360-7760
NSN 5999-01-073-6671