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 6145-01-113-8205
NSN 5930-00-081-8782
NSN 6610-00-905-6780
NSN 6110-00-111-4055
NSN 6105-01-044-5907
NSN 6135-01-374-6631
NSN 6685-01-377-4716
NSN 5935-01-571-8455
NSN 5895-00-023-8561
NSN 5996-01-055-6847
NSN 5950-00-244-8420
NSN 6610-01-658-3664