Radium AN Male to NPT Male Straight Fittings

Radium AN Male to NPT Male Fittings

These precision-machined adapter fittings convert AN male flare connections to NPT (National Pipe Thread) male ports. NPT fittings seal via the intentional interference created by tapered threads meshing together — always use a small amount of PTFE paste or tape on NPT threads, tighten to finger tight, then add a further 1.5 to 3 turns until secure.

Available in 4 configurations across 6AN and 8AN sizes with 1/4" and 3/8" NPT, in straight and 90° options.

Suits: Universal — fuel systems, oil systems, and all NPT-ported components

Available Part Numbers:

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ CNC-machined billet aluminium for precision fit and long-term durability
• ✅ Trusted by tuners and race teams running high-power builds worldwide
• ✅ NPT tapered thread sealing — use PTFE paste or tape for a leak-free connection
• ✅ Compatible with E85, ethanol, methanol, pump petrol, and flex fuel applications