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.
Classification: Unwrought aluminum, not alloyed
NSN 6685-00-720-3525
NSN 6150-01-079-3264
NSN 5930-00-369-7703
NSN 5945-01-343-0833
NSN 5999-01-132-8844
NSN 5895-01-023-6150
NSN 6110-01-166-2561
NSN 5985-00-416-3754
NSN 6620-01-192-6186
NSN 6650-00-170-5095
NSN 6135-01-415-4124
NSN 6610-01-522-9882