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 5910-01-399-0255
NSN 4140-00-182-9158
NSN 6685-01-472-2413
NSN 6105-01-562-7784
NSN 5950-00-999-9897
NSN 6320-01-072-2073
NSN 6130-01-493-6643
NSN 5895-00-661-1773
NSN 6685-01-255-2253
NSN 6145-01-170-3797
NSN 6150-01-369-3035
NSN 5835-01-213-0833