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 6110-01-227-3055
NSN 2925-01-479-6491
NSN 6220-01-389-5844
NSN 5999-00-661-0954
NSN 5985-01-311-0867
NSN 5975-00-061-7035
NSN 5975-01-267-7045
NSN 6130-01-189-9140
NSN 5835-01-528-1864
NSN 5915-00-646-7871
NSN 5990-01-630-5094
NSN 5945-00-014-6411