M22759 & AS22759 covers fluoropolymer-insulated single conductor electrical wires made with tin-coated, silver-coated, or nickel coated conductors of copper or copper alloy.
What is tefzel wire?
Tefzel® is a ethylene-tetrafluoroehtylene (ETFE) insulation. Tefzel® is light, thin, resistant to abrasion, fuel, most chemicals, cuts and oil. It's designed for aerospace applications where dimensional tolerance, weight, and mechanical durability are required. ... This wire exhibits high chemical and radiation resistance.