The Stihl collar nut (code 0000-995-0800 ) is an original spare part for the spool cover of Stihl MS193C-E MS193T chainsaws MS193TC-E MS194C-E MS194T MS194TC-E MS201 MS201C-E MS201C-EM MS201C-M MS201T MS201TC-E MS201TC-M and pruners Stihl HT100 HT101 HT103 HT130 HT131 HT133 HT56C-E HT70 HT75 HTE60 HT-KM MN