Autopilot Systems 312-A 2 in Union Nut

Identify the replacement nut

This listing is for a two-inch AutoPilot union nut, part number 312-A. It helps when only the nut is stripped, cracked, or missing from an existing union rather than replacing the whole fitting.

• Component check: compare the old nut size and style before ordering; this listing does not identify a complete union assembly.
• Sizing check: verify the two-inch designation against the fitting rather than guessing by pipe diameter alone.

Keep it distinct from union bodies or seals if your parts list names those separately.

Amazon product listing provides the part number, size, and listed component name for this item.