45mm ID x 4mm C/S Viton FKM FPM O Ring. Choose Quantity. 45X4. New. Metric.
45mm ID x 4mm C/S Viton FKM FPM O Ring. Choose Quantity. 315mm ID x 4mm C/S Viton FKM FPM O Ring. O Rings - 1mm C/S - Viton. O Rings - 1.5mm C/S - Viton. O Rings - 2mm C/S - Viton. O Rings - 2.5mm C/S - Viton.