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 6645-01-452-3354
NSN 4140-00-215-8593
NSN 5925-01-191-4285
NSN 2925-01-629-9416
NSN 6620-01-385-6172
NSN 5910-00-001-2596
NSN 5915-00-740-4336
NSN 6135-00-455-2425
NSN 6650-00-234-3275
NSN 6320-01-652-3806
NSN 5950-01-272-2679
NSN 5996-01-472-2098