MECH Rubber offers the seal industrys largest inventory of O-rings including every standard AS-568B size, including I.D.s from 132 (.794mm) to 26 (66.04cm), O.D.s from 332 (2.38mm) to 26-12 (67.31cm) and cross sections (widths) from 132 (.794mm) to 14 (6.35mm). We also carry a wide variety of metrics and non-standard sizes. Most likely the size and compound you require is in our stock of over 300, 000, 000 O-rings. Our O-ring inventory is constantly restocked to assure immediate delivery of any size in large or small quantities. We are the largest rubber manufacturers in India.