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 5920-01-209-9847
NSN 7035-01-408-6802
NSN 5996-01-495-9197
NSN 6685-01-590-3643
NSN 6610-00-582-1107
NSN 5905-01-529-3041
NSN 5999-01-206-4657
NSN 7035-01-452-4306
NSN 6240-01-089-1383
NSN 6135-01-394-4160
NSN 6135-01-136-8306
NSN 6645-00-983-2046