Technical informationO-ring cross referenceAn extensive reference of O-ring sizes.O-ring materialUNI O-ring standard specifications (metric)JIS B 2401 O-ring standard specifications (metric)SMS 1586 O-ring standard specifications (metric)NF T 47-501 O-ring standard specifications (metric)DIN 3771 O-ring standard specifications (metric)BS 4518 O-ring standard specifications (metric)ISO 3601-1 O-ring standard specifications (inch and metric)BS 1806 O-ring standard specifications (inch)AS 568 A O-ring standard specifications (inch)