and ##) without horizontal rules

• Implement pure HTML <table> syntax for all tables
• Follow the exact output structure: Page Title → Part Overview → Key Parameters → Substitute Part Grouping Explanation → Parameter Comparison → Engineering Selection Recommendations → FAQ
• Ensure SEO-friendly content with full part numbers and category keywords
• Avoid marketing language, calls to action, or concluding statements
• Format for direct paste into web Markdown editors

Please provide the input parameters for the main part and substitute parts, and I'll generate the reference page accordingly.