In the interest of trying to sort this out, looked up what would be a 3003 000 9218 bar in my 2006 Bar and Chain Manual, and got the numbers from my Duromatic bars.
The last two numbers '..18' in the bar info is the bar length code, but Stihl didn't use that '18' code in the 2006 manual. Maybe they changed codes after 2006: the way the bar info is bordered may indicate the bar is more modern.
I have a 25" 12mm slot 3003 000 2231 Duromatic dated 11.79, and the '..31' does correspond to Stihl's bar length code. My more modern Duromatic is an 18" 12 mm slot 3003 000 8617, which matches codes.
My older 15 inch dated 5.66 and 17 inch 11.68 "pre-Duromatics" both have the 14mm slot.