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 5855-00-688-9954
NSN 5935-01-034-5261
NSN 6240-01-160-7934
NSN 6105-00-456-0920
NSN 5910-00-148-8197
NSN 6685-00-243-8071
NSN 4140-00-202-6285
NSN 5905-00-265-1659
NSN 5999-00-850-2022
NSN 5920-00-077-8528
NSN 5945-01-037-1072
NSN 4140-01-386-6688