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 5930-00-479-3850
NSN 5998-00-106-4333
NSN 5910-01-493-3717
NSN 6220-00-932-4992
NSN 6135-01-154-3526
NSN 6620-00-621-6951
NSN 6320-01-618-7800
NSN 5855-00-832-9341
NSN 5855-01-461-7726
NSN 6145-00-342-8122
NSN 6110-01-468-1702
NSN 5990-01-633-9503