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 4140-00-146-1633
NSN 6105-01-116-3439
NSN 5998-01-478-7394
NSN 2925-01-542-9403
NSN 5950-01-368-8681
NSN 6650-00-403-6386
NSN 6220-00-079-0178
NSN 5996-01-111-8580
NSN 6645-00-116-1409
NSN 5975-00-119-3977
NSN 5920-00-226-7148
NSN 6645-00-914-2820