7 tooth, 3/8" Pitch & Std Spline
O/E:501 59 80 02

Fits Stihl 038, MS380 & MS381

Fits Stihl and Husky

Fits most Husky
O/E:501 51 38 01

Fits Stihl 038 & more
O/E:1118 664 1600

Used on most chainsaws

Various Bar Nuts to suit Husky & Stihl

19 mm plug x 4mm spline x T27

Fits Stihl 038 & MS381

Crank Shafts for different models

Fits Husky 36,41,42 & more

Fits Husky 61, 268, 272, 362, 365, 371 & 372