FMSI > Transmission & Oil System > Power Steering & Transmission Repair Lines GM, Ford & Chrysler > Item # 4521 FMSIFMSI Transmission & Oil SystemTransmission & Oil System Power Steering & Transmission Repair Lines GM, Ford & ChryslerPower Steering & Transmission Repair Lines GM, Ford & Chrysler Item # 4521 Item # 4521, 5/16" x 1/2" - 20 Tube Nut (Invert Flare) to Ridge Bead Repair Line (3-3/4") 45215/16" x 1/2" - 20 Tube Nut (Invert Flare) to Ridge Bead Repair Line (3-3/4") Request Information Email This Page Download PDF Download PDF Printable Page /Asset/a1411.jpg /Asset/a1411.jpg Close Window Unit of Measure Imperial Metric Both Specifications Tube Size N/A 5/16" Length N/A 3-3/4" Thread N/A 1/2" - 20 Tube Nut Part # N/A 3006 (Gold) Flare N/A Invert & Ridge Bead Packaging N/A SP)2) HP(1)