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.
NSN 6620-00-220-2157
NSN 6620-01-605-1154
NSN 6135-01-501-0833
NSN 5920-01-233-4244
NSN 5965-01-005-6617
NSN 6145-00-427-7201
NSN 6645-00-269-8440
NSN 5835-01-296-8146
NSN 5999-00-733-6655
NSN 6650-01-373-8067
NSN 5905-00-690-1492
NSN 5905-01-065-4069