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 5925-01-409-2616
NSN 6620-01-205-0320
NSN 5910-01-423-5802
NSN 5960-01-183-3779
NSN 5905-01-015-8762
NSN 6135-00-926-0845
NSN 5855-01-236-9645
NSN 5950-01-300-8522
NSN 5930-00-556-2990
NSN 5965-01-082-1885
NSN 5935-00-823-0993
NSN 5960-00-523-9767