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 7035-01-580-0957
NSN 5930-01-634-0659
NSN 5920-01-484-7065
NSN 5950-01-347-4384
NSN 5935-01-432-1733
NSN 5910-00-769-5448
NSN 5960-01-350-2925
NSN 6685-01-246-1912
NSN 5925-01-361-8836
NSN 5920-00-100-7219
NSN 5905-01-225-1933
NSN 6685-00-787-8594