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 5920-01-384-5951
NSN 6620-00-838-6954
NSN 5999-01-301-4158
NSN 5945-01-406-3497
NSN 4140-01-459-4477
NSN 6220-01-547-4455
NSN 5945-01-462-1555
NSN 2925-00-284-1534
NSN 6610-01-341-6041
NSN 6320-01-220-2264
NSN 4140-01-478-6496
NSN 6320-01-631-7828