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 5999-01-634-0576
NSN 2925-00-411-0600
NSN 5925-01-537-0180
NSN 6610-00-448-6414
NSN 6620-00-052-8003
NSN 6320-01-420-0340
NSN 5915-00-144-5548
NSN 5945-01-113-4067
NSN 5985-01-441-8140
NSN 6145-01-562-8155
NSN 6650-01-040-3958
NSN 5975-01-231-8967