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 5990-01-529-6985
NSN 5990-01-400-3299
NSN 6620-01-193-9846
NSN 7035-01-138-5781
NSN 5975-01-498-0835
NSN 5996-00-611-2641
NSN 4140-01-435-6198
NSN 6240-00-533-1493
NSN 5835-00-092-1136
NSN 5905-01-413-5978
NSN 4140-01-378-6710
NSN 6620-01-246-4314