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 5985-01-073-9101
NSN 6130-00-300-8661
NSN 5925-01-239-6743
NSN 6240-00-172-8451
NSN 5960-01-573-6483
NSN 5975-00-453-9662
NSN 5935-00-501-7256
NSN 5996-01-120-3425
NSN 6145-01-179-9854
NSN 5930-01-660-2820
NSN 4140-01-516-8150
NSN 6645-01-251-0441