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 6130-01-303-7155
NSN 5945-01-657-6203
NSN 5965-00-932-4591
NSN 4140-01-360-9873
NSN 5895-00-001-9134
NSN 5985-00-623-7219
NSN 6220-00-197-0462
NSN 6135-01-563-4445
NSN 5895-01-221-4156
NSN 5910-00-339-2198
NSN 6645-00-616-1289
NSN 5985-01-462-9214