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 5999-00-278-5563
NSN 5990-00-965-0495
NSN 6645-01-467-9983
NSN 6610-01-212-9817
NSN 5855-00-494-9581
NSN 6650-01-135-8514
NSN 5945-01-225-9809
NSN 5910-00-400-5396
NSN 5925-00-905-1767
NSN 5920-00-710-2781
NSN 6105-00-248-5186
NSN 2925-01-253-6006