Stihl "33RS-1 chain? Part number starts 3891

[Roanoker494]

I am familiar with the Stihl 33RS chain, now known as 33RSC, but does anyone know what the 1 stands for? I was told that the chains were spun from a bulk roll that was marked "33 RS1" and the part number on the box was 3891 000 1640. A Google search produced nothing on the part number and I could only find the RS1 referenced in a couple of owners manuals. The Stihl chain ID pdf states the 1 stands for "Triple-humped Tie Strap on PM chain", so that could not apply since this is RS chain. Any help would be greatly appreciated.

 

[Roanoker494]

Never mind because I just found my answer. 33RS1 is comparable to Oregon LG, which has a safety bumper but is still considered "yellow label" chain.

 

[Roanoker494]

Here is the PDF that I used to determine this information.

 

[kykayaker27]

:biggrin: u just had that whole conversation with ureself ,sounds like me somdays good job

 

[young]

roll of it on the bay for 250 BIN