This Nitrous Express bottle nut secures 4AN or 6AN nipples to Nitrous Express brass/chrome bottle valves. Intended specifically for 326 NX-style valves, the nut holds the nipple in place to maintain a sealed connection between the bottle valve and AN plumbing. Use it when installing or replacing AN fittings on compatible NX bottle valves.
Nitrous Express Bottle Nut (326 NX Valve)