400.0mm wide
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 5999-00-541-0261
NSN 5895-00-930-3740
NSN 6150-01-070-9912
NSN 5965-01-184-2477
NSN 6145-00-336-1986
NSN 6620-00-904-2139
NSN 5990-00-126-9964
NSN 5985-01-088-7337
NSN 5999-01-537-1510
NSN 5930-01-219-2859
NSN 5945-00-522-4817
NSN 6610-01-258-6206