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 7035-00-763-6180
NSN 5975-00-472-7778
NSN 5905-00-239-7585
NSN 6610-01-649-5326
NSN 5999-01-222-9276
NSN 6320-01-261-5983
NSN 5975-00-221-2555
NSN 4140-01-412-0794
NSN 6650-00-890-0480
NSN 6240-01-477-1262
NSN 5950-01-278-5794
NSN 5910-01-322-3878