On Tue, 10 Apr 2007 23:03:37 +0100, Mike Barnes
wrote:

Just get a mixed pack of O-rings from a plumber's merchant. It'll cost
next to nothing and those other sizes might come in useful sometime.

That reminds me of a colleague many years ago wanting ONE fibre washer
for some sort of project kit he was building for one of his kids. All
he could get (locally) was a packet of about 200 assorted washers. I
think he threw away about 199 of them...

It's a bit like those bubble-wrapped cards of 100 or so mixed button
cells from the 'pound shop' type of place. You could probably only
need 3 or 4% of them - a superb bit of marketing.

--
Frank Erskine