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 5915-01-652-5881
NSN 6645-01-486-1139
NSN 2925-01-301-1727
NSN 4140-01-400-3610
NSN 5998-01-188-0279
NSN 2925-01-121-0761
NSN 5950-01-434-5105
NSN 5855-01-444-3916
NSN 5925-00-034-1293
NSN 6150-00-313-5164
NSN 6150-01-311-5617
NSN 5985-01-014-7993