3-1/2 Coupling AddThis Sharing Buttons Share to FacebookFacebookShare to TwitterTwitterShare to LinkedInLinkedInShare to PinterestPinterestShare to ...AddThis tubing coupling shall be machined from the coupling blank,and made from the coupling material ,coupling stocks or hot forging. Send InquiryChat Now Product Details: Description: Tubing Coupling l Size: O.D: 2-3/8"~4-1/2" l Grade: J55, N80, L80, P110 l Thread: NU, EU l 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 Contact:Jose liu