P110 Tubing Coupling Coupling is a kind of drilling tool in oil field, which is mainly used for tubing connection or casing connection. Send InquiryChat Now Product Details: Description: Tubing Coupling Size: O.D: 2-3/8"~4-1/2" Grade: J55, N80, L80, P110 Thread: NU, EU Standard: API 5CT. API Tubing Coupling Descriptions and size Type of Thread O.D*L (mm) Weight (kg) Tubing Coupling 1.050 NUE 33.35*80.96 0.23 1.050 EUE 42.16*82.55 0.38 1.315 NUE 42.16*82.55 0.38 1.315 EUE 48.26*88.90 0.57 1.660 NUE 52.17*88.90 0.59 1.660 EUE 58.88*95.25 0.68 1.900 NUE 55.88*95.25 0.56 1.900 EUE 63.50*98.42 0.84 2-3/8" NUE 73.02*107.95 1.28 2-3/8" EUE 77.80*132.82 1.55 2-7/8" NUE 88.90*130.18 2.34 2-7/8" EUE 93.17*133.35 2.40 3-1/2" NUE 107.95*142.88 3.71 3-1/2" EUE 114.30*146.05 4.10 4" NUE 120.65*146.05 4.35 4" EUE 127.00*152.40 4.82 4-1/2" NUE 132.08*155.58 4.89 4-1/2" EUE 141.30*158.75 6.05