Stihl bars part number decipher...

[WildnCrazyGuy]

What do the 2 letter abreviations mean on the end of the part number? I have a couple of these bars with different letter combinations. Any idea what the letters HF mean? I think I have an HH and something else. Same part number and specs, but different 2 letter codes. Thanks.

 

[super3]

What do the 2 letter abreviations mean on the end of the part number? I have a couple of these bars with different letter combinations. Any idea what the letters HF mean? I think I have an HH and something else. Same part number and specs, but different 2 letter codes. Thanks.

HF....heavy f:censored: r
HH....you got me

 

[WildnCrazyGuy]

So, I have an HH, HF, and JH. Same bar? Any Stihl techs have an answer? Thanks.

 

[Lakeside53]

I'm pretty sure it's just a manufacturing location and date code.