Part number:90618229 90639221 for CMCCS620 CMCCS660 DWCS600 DCCS620 DCCS670 DCCS690 Include 90639221 chainsaw bolt and 90618229 washer, Reverse thread design, perfectly suitable for DeWalt 12”,16",18" -20v ,60v Chainsaw. Also can compatible with various outdoor electric and lawn equipment. Compatible with Dewalt Chainsaw model: DCCS620,CMCCS620M1, CMCCS620M1-CA ,CMCCS660E1, CMCCS660E1-CA, DCCS620B, DCCS620B-CA, DCCS620P1,DCC670X1, DCC690H1,DCCS620P1-CA, DCCS670B, DCCS670B-CA, DCCS670X1 ,DCCS670X1, DCCS670X1-CA, DCCS690B, DCCS690B-CA, DCCS690M1, DCCS690M1-CA, DCCS690H1, DCCS690H1-CA,DWCS600. A brand-new, unused, unopened, undamaged item in its original