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 6145-01-015-1737
NSN 5975-00-170-3623
NSN 5930-01-134-5470
NSN 5915-01-114-9855
NSN 5990-01-554-7547
NSN 5985-01-242-2190
NSN 5905-00-684-4999
NSN 5990-01-455-2919
NSN 5996-01-380-5485
NSN 6145-01-025-1372
NSN 5915-00-514-2098
NSN 6135-01-483-1501