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 6145-01-068-4668
NSN 2925-00-881-3770
NSN 6220-01-533-5849
NSN 6610-01-564-3040
NSN 6130-01-324-7937
NSN 5930-01-273-6745
NSN 5910-01-328-8539
NSN 6610-01-010-3159
NSN 5945-00-359-6889
NSN 6650-01-569-8224
NSN 6645-01-014-2849
NSN 5998-01-100-8102