Comparison : Item # LS33147-C61, 6061-T6511 Channel 60-27821 0.865" x 0.330" x 0.040"
Item # C61-150150188-T6, 6061-T6 SC Channel 1.5" x 1.500" x 0.188"
Item # C61-02.170-T6AA, 6061-T6 AA Channel 2" x 1.250" x 0.170"
Item # C61-03.170-T6AS, 6061-T6 AS Channel 3" x 1.410" x 0.170"
Item # C61-03.258-T6AS, 6061-T6 AS Channel 3" x 1.498" x 0.258"