AS23053/4 heat shrink sleeving is a dual-wall, aerospace-grade electrical insulation sleeving manufactured to SAE AS23053/4. Constructed with a crosslinked polyolefin outer wall and a meltable inner wall, this heat-shrinkable sleeving provides electrical insulation, mechanical protection, and environmental sealing for aerospace and military wire and cable assemblies. AS23053/4 sleeving is designed for applications requiring moisture sealing, encapsulation, or strain relief when properly installed.