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 6150-01-093-0835
NSN 5945-00-473-0508
NSN 6650-01-511-5262
NSN 5895-01-519-2474
NSN 5930-01-206-5408
NSN 6105-00-628-2299
NSN 5996-01-314-6479
NSN 6620-00-155-2608
NSN 5965-01-482-8786
NSN 6320-00-557-3079
NSN 6620-01-632-9143
NSN 6610-00-225-1076