Mil-W-8777 Mil-spec Wire from Allied Wire & Cable is a single conductor wire made from copper wire with silicone insulation. Primarily used for aircraft and missiles, Mil-W-8777 can be used in temperatures not exceeding 200°C. There are two different cables under Mil-W-8777: MS27110 and MS25471.
MS27110 is the standard for Mil-W-8777 wire with an FEP jacket. MS25471 is the standard for Mil-W-8777 wire with a polyester jacket.