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 5950-01-229-5600
NSN 4140-01-029-4129
NSN 6105-01-394-5721
NSN 6650-01-373-1580
NSN 6105-00-305-7727
NSN 5965-00-222-7394
NSN 2925-01-556-0333
NSN 6135-00-660-8654
NSN 6145-01-025-6514
NSN 5985-01-600-8074
NSN 5945-00-475-8107
NSN 6620-01-302-0049