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 5905-01-244-3970
NSN 5920-00-192-6565
NSN 5960-01-272-9600
NSN 5990-00-852-2369
NSN 6645-01-438-6986
NSN 5905-01-110-6980
NSN 5855-00-014-5008
NSN 5935-01-412-0467
NSN 5996-01-236-5286
NSN 2925-01-489-1394
NSN 5910-00-221-4496
NSN 5999-01-551-4413