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 5999-00-525-4320
NSN 5965-01-434-8759
NSN 5965-01-421-7273
NSN 5990-00-623-8127
NSN 6610-00-480-1200
NSN 5985-00-617-7123
NSN 6320-01-296-3181
NSN 6220-00-006-0349
NSN 6645-01-196-6277
NSN 5945-00-715-9496
NSN 6240-01-012-2180
NSN 5920-00-736-7882