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 5950-01-421-1788
NSN 6240-01-289-9898
NSN 5910-01-552-2271
NSN 5905-00-224-3552
NSN 7035-00-631-3782
NSN 5985-01-370-4978
NSN 6620-01-344-6074
NSN 6685-00-863-5823
NSN 6610-01-464-7883
NSN 5910-01-242-7437
NSN 5950-01-182-5325
NSN 6150-01-564-5694