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 5996-01-390-4028
NSN 5905-01-146-4352
NSN 6610-00-854-5044
NSN 5920-00-252-2627
NSN 6645-01-470-9599
NSN 6220-00-105-7008
NSN 5920-00-542-6389
NSN 5960-00-104-5955
NSN 7035-01-281-3642
NSN 5945-00-318-3542
NSN 5915-00-130-1796
NSN 6105-01-574-5670