As of a couple of years ago, there was a small shop in San Pedro that carried used marineparts. I don’t remember its name, but Mr. Google might help. The shop was much smaller than Minney’s, but had plenty of esoteric boat stuff last time i visited (about 2017).
Mikes Marine Salvage in Ventura has a ton of stuff. Not as big as Minney's mind you, but still quite a lot. Pretty decent used sail inventory. I almost bought a dive compressor there, but switched coasts, so it wasn't in the essential move list.
Has anyone mentioned Second Wave? They are in Gig Harbor.
But I have really no idea (just googled it)
SORRY! I thought Seattle was in California. (But I did know Seattle was on the West Coat at least) But anyway it looks as though you could buy online and have it freighted to you