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 6620-01-138-0089
NSN 5930-00-572-1351
NSN 5930-01-576-3652
NSN 5915-00-431-4941
NSN 5905-01-272-7294
NSN 5985-00-215-7922
NSN 5910-01-580-4889
NSN 5925-00-290-4451
NSN 6150-01-634-0575
NSN 5835-01-057-9634
NSN 2925-01-633-4048
NSN 6105-01-438-0209