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 5920-01-280-5089
NSN 5996-00-869-0059
NSN 5915-01-182-2494
NSN 6240-00-798-1810
NSN 6320-00-823-2015
NSN 5895-00-831-7089
NSN 6650-01-069-2501
NSN 5950-01-456-7008
NSN 6685-01-390-9423
NSN 5855-00-058-1293
NSN 6645-01-043-5236
NSN 6220-01-414-5524