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 6685-01-501-9675
NSN 5930-00-133-4033
NSN 5965-00-465-9566
NSN 6610-01-473-1843
NSN 2925-01-346-9522
NSN 5985-00-617-9043
NSN 5925-01-265-0832
NSN 6610-01-013-8922
NSN 5950-01-448-9779
NSN 5965-01-367-7380
NSN 6320-01-600-5808
NSN 5999-00-338-1965