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 6620-00-535-1412
NSN 6135-01-475-1040
NSN 6130-01-171-2825
NSN 2925-01-513-9114
NSN 5905-00-711-2374
NSN 5990-01-100-1840
NSN 6645-00-634-9317
NSN 6150-01-462-2642
NSN 6320-01-624-0193
NSN 6620-01-104-5758
NSN 5985-01-466-4260
NSN 6650-01-434-6434