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 2925-01-550-0177
NSN 5905-00-976-1352
NSN 5935-01-060-5067
NSN 5910-01-200-7324
NSN 5999-00-281-3900
NSN 6320-00-036-3688
NSN 6645-00-664-4665
NSN 5915-01-623-1317
NSN 5950-00-672-5529
NSN 5930-00-991-1442
NSN 5999-01-417-2123
NSN 5960-01-373-7317