Segal Supply — mock CAD asset SKU: 5306-00-089-1421 Name: Square Neck Bolt Format: STL Standards: NSN 5306-00-089-1421, FSC 5306 Generated: 2026-06-18T20:43:13.549Z NOTE: placeholder geometry for demonstration. Production assets stream from the CAD repository behind this same URL with DATA_SOURCE=live.