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 6320-01-607-1491
NSN 5975-00-166-0614
NSN 6610-01-481-6260
NSN 6105-00-516-2151
NSN 5855-01-562-6560
NSN 4140-00-918-5162
NSN 5835-01-131-2027
NSN 7035-01-392-8255
NSN 5950-01-461-2818
NSN 5855-00-361-0167
NSN 5960-01-015-0381
NSN 5945-00-576-0158