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 5945-01-361-8449
NSN 6645-00-935-7046
NSN 6650-01-493-3660
NSN 6105-01-591-0319
NSN 6150-01-566-9827
NSN 6645-01-162-3396
NSN 5925-01-222-0059
NSN 5855-00-560-0110
NSN 5990-00-910-4500
NSN 5905-01-250-1484
NSN 5999-01-023-9417
NSN 6135-00-334-4500