The width (or thickness) quoted for the self-centralising bonded washers relates to the thickness of the fibre part of the washer
Bonded Dowty Seals
These seals comprise a metal annulus to which a medium nitrile elastomeric ring of trapezoidal cross-section is bonded
They provide high and low pressure sealing for ports on fluid systems where mineral based hydraulic fluids or mineral based engine lubricating oils are present
Available in both metric and BSP-based Imperial sizes Hardness:1 RHD 85-95