This bar fits the following Stihl chainsaws with the 3/8 sprocket:

Stihl: 024, 026, 028, 029, 030, 031, 032, 034, 036, 038, 039, 040, 041, 042, 044, 045, 046, 048, 056, 064, 066, E 15 Electric, E 20 Electric, E 220 Electric, MS 260, MS 261, MS 270, MS 271, MS 280, MS 290, MS 291, MS 310, MS 311, MS 340, MS 341, MS 360, MS 361, MS 362, MS 380, MS 390, MS 391, MS 440, MS 441, MS 460, MS 460 R, MS 461, MS 640, MS 650, MS 660, MS 661