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 6610-01-289-0847
NSN 5975-01-454-1308
NSN 5985-01-505-2830
NSN 6130-01-268-4979
NSN 5960-01-182-3676
NSN 5990-01-492-1114
NSN 5910-00-223-9826
NSN 7035-01-078-6252
NSN 5999-01-356-2862
NSN 6620-01-589-5411
NSN 6135-00-182-7008
NSN 5930-00-176-4065