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This specification covers established manufacturing tolerances applicable to bars, rods, and wire of nickel, nickel alloy, and cobalt alloys ordered to inch-pound dimensions. These tolerances apply to all conditions, unless otherwise noted. The term "excl" is used to apply only to the higher figure of a specified range.

Where the terms "nickel", "nickel-copper", "nickel-chromium", "nickel-molybdenum", "nickel-molybdenumchromium", and "cobalt" are used without qualification, they refer to both non-heat-treatable and heat-treatable alloys as applicable, unless otherwise noted.