SKU: VIN36154-MPA
UPC: 842829118463
MPN: 36154-MPA
The VINTAGE AIR #6 SS Male Weld On O-Ring Nut is a stainless steel weld-on bung built for fabricating custom air conditioning hardlines. It carries a #6 AN male O-ring port, giving you a clean fitting point to weld directly onto tubing when you're plumbing a hardline cooling system. This is a part for builders running their own lines rather than relying on pre-made hose assemblies. If you're laying out an air conditioning circuit and need a permanent, sealed connection at the tube, this fitting handles that job. It pairs with standard #6 AN O-ring hardware throughout the rest of the system.
Construction is stainless steel with a natural finish, so it holds up to the heat and vibration of an engine bay without plating that can flake over time. The O-ring port seals on a face rather than relying on tapered threads, which keeps connections leak-free under the pressure swings of an air conditioning system. The weld-on design means you commit the bung to the tube, then thread your #6 AN line directly into it. That gives you a low-profile junction in tight routing where a bulky adapter wouldn't fit. Match it with our #6 tube sleeves and #6 tube nuts to finish a complete hardline run. The part ships with a California Proposition 65 warning per the manufacturer.
Builders fabricating air conditioning lines for street rods, restomods, and custom chassis reach for weld-on O-ring nuts when they want connections that look clean and stay sealed for the life of the build. Weld the bung to your hardline, route the tube where it needs to go, and thread on the AN side. When you're sizing out a full system, browse the rest of our fittings, hoses, and valves for matching unions, caps, and hose ends in the #6 family, including #6 AN unions for joining sections of finished line.
It's a weld-on bung for fabricating custom air conditioning hardlines. You weld it directly to your tubing to create a #6 AN male O-ring port, giving you a sealed point to thread on the rest of your AN-sized cooling system plumbing.
It's a #6 AN male O-ring fitting, so it threads into standard #6 AN female hardware. Pair it with #6 tube sleeves, tube nuts, and unions to build a matched hardline run.
Stainless steel with a natural finish, per Vintage Air. Stainless holds up to engine bay heat and vibration without a plated coating that can flake or corrode over time.
The O-ring port seals on a face rather than on tapered threads. That gives you a more consistent, leak-free connection under the pressure changes of an air conditioning system, and it lets you reuse the fitting without re-sealing every time.
Yes. Per the manufacturer, this product ships with a California Proposition 65 warning. Check the product packaging for the full warning text.
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