Description
Tefzel (ETFE) wire, commonly used in aerospace and professional motorsport wiring looms.
However, there is a small technical detail to clarify: M22759/32-20-1 actually identifies as 20 AWG, not 18 AWG. In the Mil-Spec naming convention, the middle number (20) denotes the gauge.
Here is the professional product description for this specific wire:
Product: Tefzel M22759/32-20-1 (Brown)
This is a high-performance, lightweight Mil-Spec hook-up wire designed for environments where space is tight, weight is a factor, and reliability is non-negotiable. It features a cross-linked ETFE (Tefzel) insulation that is significantly tougher than standard PVC or automotive-grade wire.
Core Specifications
Military Specification: M22759/32
Gauge: 20 AWG (Note: /32-20 indicates 20 gauge)
Color: Brown (indicated by the “-1” suffix)
Conductor: Tin-plated copper (Stranded)
Insulation: Single-layer Cross-linked ETFE (Tefzel)
Voltage Rating: 600V





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