8-31886-1 is a pre-insulated ring tongue terminal featuring a closed barrel design and PIDG (Pre-Insulated Diamond Grip) body style for secure wire termination. The terminal is constructed from copper with tin finish and accommodates wire sizes from 22 to 16 AWG (0.30–1.40 mm), with a stud diameter of 4.34 mm (M4 size) and tongue material thickness of 0.79 mm. It features red nylon insulation with an insulation diameter range of 2.67–3.56 mm and is rated for 300 VAC operation. This terminal is RoHS and ELV compliant, making it suitable for automotive, industrial, and general electrical applications requiring reliable, pre-insulated connections.