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 5905-01-431-5721
NSN 6145-00-461-1707
NSN 5975-01-388-2752
NSN 6220-00-084-4240
NSN 5950-01-180-1357
NSN 6610-00-245-6177
NSN 5925-00-411-0843
NSN 5990-01-189-3201
NSN 5965-01-005-0341
NSN 5990-01-369-3380
NSN 5925-01-332-2865
NSN 5960-00-008-6503