M22759/187-26-93 is a teflon insulated 26 awg nickel coated conductor hook up wire rated at 600v and 260c.

M22759/187 wires are normal weight, high- performance aerospace hook-up wires insulated with two layers of polytetrafluoroethylene (PTFE) tape and PTFE/ polyimide/PTFE tape for gauges 26-10, three for gauges 8-6, and four for gauges 4- 4/0. The edges of the outer insulation have been fused to create a seamless taped insulation. These wires are designed for aerospace and other applications requiring excellent thermal stability and good abrasion resistance. Conductor: Nickel Plated Copper Insulation: PTFE/polyimide/PTFE tape and PTFE tape Temp. Rating: 260º C Voltage Rating: 600 Volts R.M.S. M27500 Type: DK