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 6220-01-221-1332
NSN 5990-01-360-0711
NSN 6645-01-067-4081
NSN 5905-01-268-3161
NSN 6240-00-244-0483
NSN 5935-01-645-4038
NSN 6135-01-185-3614
NSN 6240-01-086-7242
NSN 6135-01-290-6487
NSN 6145-01-250-6825
NSN 5950-01-020-7717
NSN 5855-01-646-5962