If it were dismantled I suppose I'd assemble it with a fairly liberal helping of graphite powder. To lubricate it in service, probably one of the spray cans of dry graphite lube. It's a matter of history I suppose: I just don't see Teflon (PTFE since Dupont's patent ran out) as a heavy duty lubricant to prevent galling. I like molybenum disulfide even more than graphite, but in dry form, it's expensive.