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 5960-00-215-5884
NSN 5945-00-173-5851
NSN 6150-00-208-8934
NSN 5985-00-554-9730
NSN 5965-01-533-7687
NSN 5996-01-444-3915
NSN 6105-01-359-5938
NSN 6150-00-661-0184
NSN 5945-01-329-4646
NSN 6620-00-244-0965
NSN 5998-01-032-3078
NSN 5975-01-580-6437