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 5975-01-231-6650
NSN 5985-01-520-8182
NSN 6620-00-234-8918
NSN 2925-01-011-8732
NSN 6105-01-039-2308
NSN 5996-01-543-3543
NSN 6650-01-383-4526
NSN 6150-00-162-8477
NSN 6240-00-522-2943
NSN 6135-01-286-9563
NSN 5985-00-149-7590
NSN 5998-01-525-4675