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 5920-00-436-7753
NSN 6620-00-345-9523
NSN 6130-01-288-3333
NSN 6145-00-592-4274
NSN 5920-01-183-3125
NSN 5950-01-386-5182
NSN 5910-01-452-3652
NSN 6110-01-207-2748
NSN 5910-01-042-1795
NSN 5920-01-009-5381
NSN 5895-01-359-9188
NSN 5895-01-421-4487