Flare Identification Chart
Tube + or - .0073/16 .272 1/4 .352 5/16 .418 3/8 .493 1/2 .632 Tube + or - .0103/16 .270 1/4 .350 5/16 .415 + or - .0153/8 .475 1/2 .645Double/SAE 45 Degree FlareDIN/ISO Bubble FlareAN/JIC 37 Degree Single Flare90DEG+ or - 445DEGTool MarksAcceptable Less ThanTube RequiredNo Nicks AllowedDebur Die Blocks If NeededRadius RequiredNo Nicks AllowedDebur Die Blocks If MarksAcceptable Flare Less ThanTube + or - . RequiredNo Nicks AllowedDebur Die Blocks If NeededFlare Less ThanTube MarksAcceptable 115DEG+ or - that the Flare is the correct profile for the components involvedAutomotive fittings are always a 45 deg. double or DIN flareNever use a single 45 degree Flare with automotive nuts and fittingsA 37 degree single Flare is acceptable for use in AN/JIC nuts and fittings with Cunifer seamless tubingCommon CrossthreadsNever interchange a fully threaded nut with a nut with non-threaded leadNever interchange a nut with anon-threaded lead with a fully threadednutAlways check carefully for diameter and thread pitch Flare Identification Chart195 Federal Hill Road Oxford, MA 01540 Phone: 508-987-2660 Fax: 508-987-2661 10mm x Asian nut with SAE/double Flare10mm x metric nut with DIN/ISO flare3/8 x 24 UNF British Girling nut with old style bubble flare3/8 x 24 UNF American nutwith SAE/double flareNote the non-threaded lead portion o
Debur Die Blocks If Needed Radius Required No Nicks Allowed Debur Die Blocks If Needed Flare O.D. Tube O.D. 37 DEG Tool Marks Acceptable Flare I.D. No Less Than Tube I.D. Tube O.D. Flare O.D. + or - .18mm 4.75mm 7.1mm 6mm 8.4mm 8mm 10.7mm 10mm 12.7mm 12mm 14.7mm Radius Required No Nicks Allowed Debur Die Blocks If Needed Flare I.D. No Less Than ...
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