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 5999-00-124-2494
NSN 6135-00-985-7887
NSN 6645-01-161-8047
NSN 5950-00-519-1267
NSN 5965-01-419-6624
NSN 5950-01-346-7870
NSN 5895-01-649-6300
NSN 6685-00-135-5037
NSN 5965-01-113-7400
NSN 5990-00-366-0112
NSN 5996-01-147-6054
NSN 5855-01-474-3325