A structural shape fabricated from a ferrous or nonferrous material and resembles the following cross-sectional forms: for the letter h, both flanges of the h section are equal or longer than the width measured along the axis of the web; for the letter i, a 16 2/3 percent slope on the inside face of the ferrous type flange, either one or both of the nonferrous type flanges are shorter than the length measured along the axis of the web; for the letters t and z, on nonferrous type, the web is usually at right angles to the flanges. Letter h section may have a maximum of 5 percent slope on the inside face of the flanges.
Classification: Unwrought aluminum, not alloyed
NSN 5915-01-455-8577
NSN 5895-01-273-0670
NSN 5998-00-730-3878
NSN 5998-01-442-7059
NSN 5930-01-268-3853
NSN 6620-01-383-1997
NSN 6150-01-190-4478
NSN 6650-01-190-8607
NSN 6220-01-089-8839
NSN 5925-00-262-6087
NSN 6130-01-032-4958
NSN 5975-01-116-2115