PART NO. THREAD O-RING DIMENSIONS E F E A B S1 S2 S3 2OJ9-06OG 9/16"X18 9/16"X18 11.89X1.98 31.8 10.5 14 19 19 2OJ9-06-08OG 9/16"X18 3/4"X16 11.89X1.98 33.3 11 16 19 24 2OJ9-08OG 3/4"X16 3/4"X16 16.36X2.21 36.8 11 19 24 24 2OJ9-08-10OG 3/4"X16 7/8"X14 16.36X2.21 36.8 13 19 24 27 2OJ9-10OG 7/8"X14 7/8"X14 19.18X2.46 44 13 22 27 27 2OJ9-12OG 1.1/16"X12 1.1/16"X12 23.47X2.95 51 15 27 32 32 2OJ9-16OG 1.5/16"X12 1.5/16"X12 29.74X2.95 54.5 16 33 41 41