I'm looking for a cap to cover the pilot relight/inspection hole on my propane furnace. The furnace manufacturer (Temco) is no longer in business. The furnace works, has been serviced. The only missing piece is the cover cap for the pilot relight. Thank you.

Go to Lowe's, they have all sorts of plastic and metal caps in the hardware dept, in the drawers. If appearance isn't an issue, just use a piece of metal air duct tape.