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 5950-01-389-3703
NSN 6620-00-782-0337
NSN 5920-01-175-5714
NSN 6110-01-167-4837
NSN 6150-01-195-4247
NSN 6645-00-246-4934
NSN 6145-00-952-2872
NSN 6685-01-618-8312
NSN 6645-00-736-0476
NSN 6150-01-265-1142
NSN 5950-01-239-9490
NSN 5996-01-196-4502