Oh really! Well, great! In other news, I just happened to find a replacement last night on eBay by searching just the part number this time. Once I receive the part, I'll feel more comfortable disconnecting the pipe and valve. I hope to let you (if it matters).
So though the repair manual says the piece is nonreusable. Any advice on this question (if I can reuse it), say, if the replacement part won't work after all?
Thanks a ton!