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 5960-00-671-4034
NSN 5965-01-627-7972
NSN 4140-01-418-0831
NSN 2925-00-347-7893
NSN 5999-01-484-0193
NSN 5990-01-254-2936
NSN 5950-01-644-1025
NSN 5950-01-551-4498
NSN 4140-01-100-1223
NSN 6145-01-444-4509
NSN 6645-01-391-6492
NSN 6145-01-472-4661