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 5945-00-952-2305
NSN 5975-01-385-8039
NSN 6135-01-255-9129
NSN 6650-01-509-2032
NSN 6685-01-434-7443
NSN 6110-01-076-6155
NSN 2925-00-536-4574
NSN 6645-01-179-0243
NSN 6135-01-424-4940
NSN 6610-01-165-2103
NSN 5920-00-532-1659
NSN 6110-01-227-5465