FMSI > Fuel System > Fittings > Fuel Line Tube Nuts > Item # 3487 FMSIFMSI Fuel SystemFuel System FittingsFittings Fuel Line Tube NutsFuel Line Tube Nuts Item # 3487 Item # 3487, 5/16” x 14mm x 1.50 Steel Saginaw O-ring Flare Tube Nut (Toyota Coated) 34875/16” x 14mm x 1.50 Steel Saginaw O-ring Flare Tube Nut (Toyota Coated) Request Information Email This Page Download PDF Download PDF Printable Page /Asset/a1904.jpg /Asset/a1904.jpg Close Window - For 5/16” tube- 14mm x 1.50 thread- Used with NYGAL coated lines- For use with GM Saginaw o-ring flares Unit of Measure Imperial Metric Both Specifications Tube Size N/A 5/16 in Thread Diameter N/A 14 mm Thread Pitch N/A 1.50 Color N/A Gold (Coated) Packaging N/A SP(5) HP(2)