This U.S. Census Bureau NAICS-based industry comprises establishments primarily engaged in the merchant wholesale distribution of general-purpose industrial machinery, equipment, and supplies.

Cross-References. Establishments primarily engaged in--

• Merchant wholesale distribution of internal combustion engines, automotive: sold by warehouse distributors--are classified in U.S. Census Bureau NAICS-based industry 4231201, Motor Vehicle Supplies and New Parts Merchant Wholesalers - Warehouse Distributors;
• Merchant wholesale distribution of internal combustion engines, automotive: sold by jobbers--are classified in U.S. Census Bureau NAICS-based industry 4231202, Motor Vehicle Supplies and New Parts Merchant Wholesalers - Jobbers; and
• Merchant wholesale distribution of internal combustion engines, aircraft--are classified in U.S. Census Bureau NAICS-based industry 4238601, Aircraft and Aeronautical Equipment and Supplies Merchant Wholesalers.