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 5965-01-328-7979
NSN 5965-01-114-8135
NSN 5965-00-940-7028
NSN 5895-00-987-6576
NSN 5996-01-470-0545
NSN 5975-01-101-4579
NSN 6110-01-410-7637
NSN 6685-01-100-6744
NSN 5965-00-518-0958
NSN 6620-01-583-2779
NSN 5855-00-631-4565
NSN 5895-01-412-0478