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 5985-00-513-3420
NSN 5930-01-354-2043
NSN 6645-00-975-6941
NSN 5925-01-123-9381
NSN 7035-00-679-9027
NSN 6105-01-410-7634
NSN 5999-01-122-1816
NSN 6150-00-363-7102
NSN 6320-01-211-6578
NSN 6610-01-500-0863
NSN 6105-00-553-5161
NSN 2925-00-567-7172