-20AN Male Weld Bung - 6061 Aluminum

Also available in 6061 aluminum: -4AN | -6AN | -8AN | -10AN | -12AN | -16AN | All AN weld bungs

Same size in: 304 stainless

6061 ALUMINUM MALE AN WELD BUNG: A WELD-IN 37° FLARE PORT FOR FUEL, OIL AND COOLANT LINES

This -20AN male weld bung is CNC machined from 6061-T6 aluminum with a 37° AN flare on the threaded end. Weld it to tanks, catch cans, radiators and surge tanks, and a -20AN female hose end or fitting threads straight onto it.

AN fittings seal metal to metal on the 37° flare, not on the threads, so no tape or thread sealant is needed. Keep the flare clean and undamaged and it will seal again every time the line comes off.

FEATURES

• 37° AN flare (SAE J514), 1-5/8-12 UNF thread
• CNC machined from 6061-T6 aluminum
• Suitable for fuel systems, including E85
• Weld to aluminum only, with a matching aluminum filler

Full specifications (thread, diameters, height) are listed in the spec table at the bottom of this page.

WHAT CONNECTS TO IT

• Female AN hose ends and swivel fittings in the same dash size
• AN flare caps, for blanking the port off

45° SAE flare fittings look similar but will not seal on a 37° AN flare. Don't mix the two.

DASH SIZE REFERENCE

The dash number is the tube or hose OD in sixteenths of an inch.

WELDING TIPS

• Thread an AN cap or a spare female fitting on before welding. It protects the flare from spatter and helps the threads hold their shape.
• Tack it, then weld in short sections, alternating sides to keep heat even.
• Let the bung cool completely before removing the cap.
• Inspect the flare after welding and clean off any spatter before connecting a line.

SAFETY: Never weld, drill or grind on a tank that has held fuel.

Material tolerances: Diameters and heights in the spec table are nominal. Machined dimensions are subject to standard tolerances, so measure your parts before cutting holes. Nominal dimensions; material tolerances apply.

Shop all AN weld bungs and AN fittings and hose.