The Ingersoll Rand 95674701 copper washer is used on several models of Ingersoll Rand's T30 compressor pumps and creates a seal between the drain plug and the pump. Depending on the pump there could be several washers used on each model.
The most popular Ingersoll Rand compressor pumps that utilized this copper washer were the 2475, 2545, and 3000 pumps
Part #: 38436721
Part #: 38440236
Part #: 32170979
Part #: 95674651