1-172888-3 is a silicone single wire seal (SWS) designed for use with Econoseal J - Mark II connector systems. This seal features a 4.4 mm cavity diameter and is compatible with wire sizes ranging from 20 to 16 AWG, accommodating insulation diameters from 2 to 2.6 mm. Constructed from brown silicone material with a Shore A hardness of 40, it operates reliably across a temperature range of -40°C to +130°C. The seal contains lubricant for ease of installation and is compliant with EU RoHS and ELV directives. It is commonly used in automotive connector applications where environmental sealing and wire protection are required.