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 6320-00-004-9158
NSN 5950-01-198-9512
NSN 5935-00-666-4877
NSN 6685-01-550-4605
NSN 5985-01-408-5950
NSN 5965-01-547-4779
NSN 6150-01-484-5353
NSN 5999-00-581-0512
NSN 6685-01-656-7048
NSN 6145-00-497-1578
NSN 5835-01-495-0595
NSN 5985-01-234-3965