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 5915-01-502-6623
NSN 5975-01-629-9690
NSN 5930-00-866-6888
NSN 5925-01-172-5708
NSN 6110-01-045-1083
NSN 5930-01-143-6278
NSN 5990-00-061-9041
NSN 5905-00-248-3919
NSN 6620-00-990-3385
NSN 5835-01-629-2044
NSN 5925-01-527-0792
NSN 6135-01-577-5532