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 5920-01-541-5030
NSN 5975-01-384-4895
NSN 5950-01-072-9539
NSN 5985-00-053-9945
NSN 6240-00-018-6836
NSN 6130-01-216-3203
NSN 5965-01-627-3774
NSN 5895-01-461-0010
NSN 6645-01-255-7024
NSN 5999-01-258-8876
NSN 5999-01-322-4906
NSN 5935-01-236-0600