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 5915-00-469-5765
NSN 5935-01-178-2642
NSN 5910-01-498-0210
NSN 5960-00-315-0358
NSN 6620-01-296-0873
NSN 6145-00-849-3897
NSN 4140-01-581-3412
NSN 5990-00-067-6791
NSN 6130-01-286-0607
NSN 5930-01-535-0280
NSN 5985-00-060-1738
NSN 4140-01-333-9610