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 5855-01-076-5202
NSN 5915-01-338-4792
NSN 6150-01-163-8793
NSN 6110-01-197-9850
NSN 5920-00-753-5113
NSN 6150-01-298-9321
NSN 4140-01-510-8707
NSN 6620-01-357-7751
NSN 5905-01-133-4326
NSN 6110-00-992-3789
NSN 5915-01-061-4415
NSN 4140-00-816-8820