Nitrile - 21mm ID x 1.5mm C/S O Ring. Choose Pack Size. 21x1.5 . New. Metric.
O Rings - 1mm C/S - Nitrile. O Rings - 1.5mm C/S - Nitrile. O Rings - 2mm C/S - Nitrile. O Rings - 2.5mm C/S - Nitrile. O Rings - 3mm C/S - Nitrile. Nitrile - 21mm ID x 1.5mm C/S O Ring. The material is Nitrile (NBR 70).