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 5925-01-321-5140
NSN 7035-01-506-0734
NSN 5950-01-139-3908
NSN 6130-00-186-0737
NSN 6320-01-414-3515
NSN 6150-00-113-5249
NSN 5895-01-447-1956
NSN 5925-00-267-3044
NSN 5965-01-343-6983
NSN 5996-01-264-5552
NSN 7035-00-205-1932
NSN 4140-01-366-1983