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 5835-00-689-0278
NSN 5998-01-634-0604
NSN 5945-00-045-6255
NSN 6135-00-856-1343
NSN 5905-00-909-1778
NSN 6135-01-411-3212
NSN 5915-00-628-8960
NSN 6240-00-594-7138
NSN 6220-01-093-0928
NSN 6135-00-840-6451
NSN 5920-00-553-7118
NSN 5855-00-433-2377