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 5985-01-157-9760
NSN 5905-01-284-3640
NSN 6150-01-482-4088
NSN 6130-00-277-7321
NSN 6105-00-175-9078
NSN 6135-01-546-4588
NSN 6650-00-389-4111
NSN 6240-00-212-4305
NSN 6650-01-055-6168
NSN 5999-01-453-9982
NSN 6110-00-995-7211
NSN 6150-01-414-4948