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 2925-01-527-1207
NSN 6620-01-485-0556
NSN 5960-00-796-1664
NSN 5925-00-642-5253
NSN 5835-00-980-0468
NSN 5910-01-431-7059
NSN 5925-01-401-5314
NSN 5855-00-973-5717
NSN 5905-01-539-1575
NSN 5935-01-466-5567
NSN 5925-00-412-1139
NSN 5925-01-566-3242