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 6685-01-401-5360
NSN 6645-00-192-1152
NSN 5910-01-314-6340
NSN 5975-01-218-4407
NSN 5975-01-534-8643
NSN 6105-00-494-0846
NSN 5965-01-527-1220
NSN 5835-00-074-3700
NSN 5935-01-658-5816
NSN 5945-01-624-9501
NSN 5930-01-418-4887
NSN 5960-01-005-2568