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 5950-00-476-7142
NSN 5996-01-127-5431
NSN 6110-01-253-0767
NSN 5855-00-821-7512
NSN 6150-00-111-3528
NSN 6320-00-925-0558
NSN 5930-00-043-2715
NSN 5985-00-596-7263
NSN 5835-01-647-6426
NSN 6220-00-405-5986
NSN 6320-01-462-2295
NSN 6320-01-521-1764