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 5960-01-056-8109
NSN 7035-01-530-3677
NSN 6105-01-266-7482
NSN 6130-01-093-3077
NSN 5855-01-070-4072
NSN 5855-01-475-8335
NSN 5925-00-835-4792
NSN 5990-00-937-9138
NSN 5930-01-504-8454
NSN 2925-01-350-8372
NSN 6220-01-585-2591
NSN 5925-00-175-9349