38mm ID x 3mm C/S Red Silicone O Ring. Choose Quantity. 38x3. New. Metric.
38mm ID x 3mm C/S Red Silicone O Ring. Choose Quantity. O Rings - 3mm C/S - Nitrile. O Rings - 3mm C/S - Viton. O Rings - Red Silicone. O Rings - Clear Silicone. O Ring Gauge. The material is Red Silicone (VMQ 70).