Dia-Compe XCT brake pad part number?

[IdahoBrett]

What is the brake pad part number for the cantilever brake?

In the 1990 catalog the ST1000 brakeset is listed as the 984. That pad part number is opc-25. I’ve found opc-25LK

The ST400 lists the brakeset as just XCT. Dia-Compe seems to run their models by number not letters.

If the xct takes the same pad, does the LK suffix denote anything?

 

[black lightning 1987]

I'm no expert on the various models. They had numbered models as well, in the 1980s/1990s Cannondale used 984s and 986s on MTBs and touring bikes. You might look through the listings here and see what models had similar pads:

VeloBase.com - Component Listing