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 5925-00-192-7183
NSN 5895-01-176-4095
NSN 5950-01-656-1137
NSN 6150-01-208-6557
NSN 5996-01-172-9000
NSN 5999-01-618-9648
NSN 5920-01-376-4926
NSN 5920-01-392-4407
NSN 5935-00-730-0599
NSN 6130-01-068-3216
NSN 5895-00-234-6319
NSN 6650-01-071-1234