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 5965-00-052-7596
NSN 5965-01-415-3865
NSN 6130-01-218-4382
NSN 6110-01-408-7821
NSN 5920-01-458-1197
NSN 6610-01-171-3010
NSN 6220-00-553-8938
NSN 5998-01-452-7087
NSN 6240-01-483-0449
NSN 4140-01-158-9515
NSN 5930-00-216-5846
NSN 5910-00-354-5600