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 6150-00-402-6200
NSN 5915-00-070-9549
NSN 6220-01-514-0381
NSN 5935-01-146-0356
NSN 5945-01-555-8373
NSN 6240-01-355-4425
NSN 6645-01-512-2034
NSN 6650-00-246-3751
NSN 5996-01-359-0057
NSN 6145-01-371-6250
NSN 6645-00-567-4562
NSN 6135-00-643-4843