Best used for Confluence with the Pre-2010 outfitted with the Discontinued 2 in. Skeg Tube that was a part common in Wilderness Systems sea kayaks outfitted with a skeg, circa 2000 – 2010. Also common on Confluence brand kayaks such as Dagger, Perception.
The 2 in. Stainless Steel Skeg Guide is located inside the hull, in the stern, on the skeg box, under the hatch cover. Skeg Tube (17060015) was ¼ inch in diameter and approximately 
2 inches long, threaded on one end. Two hex nuts (3430-0200).
This is the neoprene backed washer (1FAS059) that was a part of that assembly (service part number 9800481).
If you need a tube get the Skeg Control Tube Set and cut down the six inch tube to match. Use the search at top of page for nuts and washer.
See all skeg parts compatible with pre 2010 Confluence skeg systems. PRE2010WSSKEG
To gain insight on how a repair might be performed see the Skeg Cable Replacement Video. This video is applicable to Wilderness Systems, Perception, Dagger sea kayaks circa 2009 and earlier. PR