Shimano Part Number Y4EW98030. Cone Depth: 20.5mm. Shipping Weight: 33g.
When servicing a hub or replacing cones we recommend that you always replace the balls.
A hub that uses these cones will use 3/16" balls x 22 (11 per side).
For this quality of hub we recommend you use Grade 5 balls (very high quality).
You can click on the links on the right of this page to go directly to the recommended balls, either individually or in a relatively inexpensive pack of 50.