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 5950-01-556-7010
NSN 6320-01-125-3361
NSN 5950-00-170-9103
NSN 6610-01-596-3254
NSN 6685-01-166-8886
NSN 7035-01-386-3004
NSN 6610-01-648-6527
NSN 5975-00-564-0476
NSN 6150-00-314-0728
NSN 5935-01-630-5977
NSN 6320-01-458-1853
NSN 4140-00-843-1300