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 6110-00-200-4777
NSN 7035-00-631-3782
NSN 5895-01-449-1839
NSN 4140-01-426-8428
NSN 6150-01-350-9943
NSN 6620-01-644-3496
NSN 7035-00-020-2227
NSN 5960-00-766-6042
NSN 5935-00-452-2221
NSN 5925-00-159-0444
NSN 5945-00-243-9365
NSN 5925-01-411-6028