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 5945-01-057-9248
NSN 5855-01-294-0912
NSN 6145-01-338-8344
NSN 6320-00-636-0922
NSN 6240-01-109-4680
NSN 6130-00-920-4307
NSN 6135-00-900-2139
NSN 6620-01-318-8314
NSN 6220-01-435-4839
NSN 5895-01-443-3463
NSN 5999-01-443-8824
NSN 6320-00-894-1644