Munaco Sealing Solutions has a wide selection of metric and US customary sized o-rings made to AS568, JIS B 2401, DIN 3771, ISO 3601, BS 1806, BS 4518, ISO 6149, NFT 47-501, SMS 1586, Parker 500 Series, and Metric O-Ring standards. Custom molded o-ring products are also available from a wide variety of materials like FKM, NBR, FVMQ, FFKM, ACM, HNBR, VMQ, CR, EPDM, and other proprietary brands. Munaco also carries MIL-spec o-rings and AMS-spec o-rings. Munaco also offers a vulcanized o-rings to any size from any compound. Call Munaco when you need standard or custom o-rings.