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 4140-01-317-4441
NSN 6685-00-808-4375
NSN 5915-01-438-2215
NSN 7035-01-163-8423
NSN 5998-00-632-0642
NSN 6130-01-606-8437
NSN 6650-00-641-6139
NSN 6650-01-579-7240
NSN 5998-00-289-9092
NSN 6145-00-932-1950
NSN 2925-00-373-8837
NSN 6135-00-009-4100