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 5930-00-740-9384
NSN 5975-01-373-9394
NSN 6320-00-646-3311
NSN 6645-00-994-6664
NSN 6645-01-621-8564
NSN 5996-01-479-9637
NSN 5975-01-372-2389
NSN 5999-01-350-3596
NSN 6320-01-562-1599
NSN 5920-00-960-7614
NSN 5895-01-554-7308
NSN 5930-01-493-8369