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Continue to ChatBS005 Viton (FKM) O-Ring (2.57mm ID x 1.78mm C/S) https://www.airebearings.co.uk/product/bs005-viton-fkm-o-ring-2-57mm-id-x-1-78mm-c-s/
BS005 Viton (FKM) O-Ring (2.57mm ID x 1.78mm C/S) https://www.airebearings.co.uk/product/bs005-viton-fkm-o-ring-2-57mm-id-x-1-78mm-c-s/