Bummer today - I got a flat and when I went to pump up the tire, I realized the Campagnolo head on my Silca pump was missing the cap-nut that you use to cinch down on the valve. The washer was still there...

Anyone know of a place to get a replacement? Bikeville has the whole assembly (50$!!) but I don't need the whole thing, and besides, I have yet to get a response to any email I've ever sent them.