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 6110-01-005-1595
NSN 5950-01-389-3118
NSN 5975-00-081-5247
NSN 6130-01-057-6925
NSN 6135-01-466-3980
NSN 5905-00-810-3059
NSN 6220-00-880-1860
NSN 5950-01-408-2068
NSN 6610-00-705-9502
NSN 5990-00-933-5314
NSN 5996-01-441-1594
NSN 5925-00-145-9065