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 6240-01-552-2232
NSN 5985-01-364-8213
NSN 2925-00-071-4197
NSN 5998-01-388-3784
NSN 7035-01-268-0933
NSN 5930-01-502-8274
NSN 5910-01-588-1850
NSN 6685-01-523-6219
NSN 5855-00-821-7512
NSN 5895-00-499-4469
NSN 6240-00-231-0761
NSN 5985-01-406-3261