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 4140-00-850-5973
NSN 4140-01-012-3996
NSN 5990-01-414-2778
NSN 6645-01-161-8047
NSN 5920-00-855-6600
NSN 5996-00-171-0144
NSN 5990-01-272-4091
NSN 6145-01-054-7463
NSN 5996-00-648-2490
NSN 6645-00-051-8888
NSN 6650-01-193-3668
NSN 6610-00-515-6462