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 6645-01-580-9570
NSN 5945-01-135-4014
NSN 6150-01-600-6414
NSN 5925-01-400-3002
NSN 5950-01-555-6098
NSN 6320-01-232-4664
NSN 5960-01-443-3067
NSN 6620-01-142-0084
NSN 5985-00-233-7284
NSN 6135-00-602-1561
NSN 6620-01-578-1984
NSN 4140-00-373-4833