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 6650-01-459-3946
NSN 5960-01-359-6630
NSN 5915-01-371-2906
NSN 2925-01-157-9204
NSN 6685-00-553-8733
NSN 6240-01-399-0343
NSN 5996-01-199-8555
NSN 5910-01-188-6365
NSN 5935-01-461-9059
NSN 6150-01-653-7710
NSN 6135-00-519-1325
NSN 4140-00-128-8072