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 5910-01-621-2230
NSN 6620-01-356-2374
NSN 6110-00-223-2081
NSN 2925-01-504-3058
NSN 5965-00-620-7154
NSN 6105-01-361-5410
NSN 5935-00-478-0129
NSN 5945-01-653-5913
NSN 5895-00-814-5244
NSN 5990-01-146-9126
NSN 5998-00-945-8224
NSN 6135-00-798-1425