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 5999-00-920-0512
NSN 5998-01-400-0595
NSN 6650-01-089-3292
NSN 2925-00-973-9413
NSN 5990-01-160-6978
NSN 6220-00-543-4416
NSN 6620-01-463-1373
NSN 2925-01-550-0177
NSN 5855-01-464-5084
NSN 6135-00-284-1406
NSN 6240-01-359-7230
NSN 5910-01-304-7145