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 6135-01-653-6113
NSN 6145-01-484-2495
NSN 6145-01-286-1802
NSN 5835-01-336-1153
NSN 5855-00-631-4565
NSN 6620-01-168-8244
NSN 5965-01-237-3342
NSN 5998-00-299-0153
NSN 6645-00-327-4005
NSN 5998-00-823-9474
NSN 4140-01-580-1224
NSN 6620-01-100-3181