Exhibit 21.1 		 Subsidiaries of the Registrant Set forth below is a listing, by name and state of incorporation, of each corporation which is, as of the date of this Report, or was, at any time since the first day of the fiscal year ended January 27, 1995, a subsidiary of the Registrant. Unless otherwise indicated, each such corporation was a 100% owned subsidiary during such fiscal year and continues in existence as a 100% owned subsidiary of the Registrant as of the date of this Report. 1) XSMC, Inc., a Florida corporation, merged into the 	 Registrant January 27, 1995 2) Carolina Pump & Supply Corp., a Rhode Island 	 corporation 3) USCO Incorporated, a North Carolina corporation 4) Paine Supply of Jackson, Inc., a Mississippi 	 corporation 5) Hughes Aviation, Inc., a Florida Corporation 6) One Stop Supply, Inc., a Tennessee corporation 7) Mills & Lupton Supply Company, a Tennessee corporation 8) Twin-T of the Carolinas, Inc., a North Carolina 	 corporation, merged into Carolina Pump & Supply Corp. 	 February 20, 1995 9) H Venture Corp., a Florida corporation 10) HHH, Inc., a Delaware corporation 11) HSI Corp., a Delaware corporation 12) Electrical Distributors, Inc., a Georgia corporation, 	 merged into the Registrant January 27, 1995 13) Alabama Water Works Supply, Inc., an Alabama 	 corporation, merged into the Registrant January 27, 	 1995 14) Swaim Supply Company, Inc., a North Carolina 	 corporation, merged into USCO Incorporated February 7, 	 1995 15) Olander & Brophy, Inc., a Pennsylvania corporation, 	 acquired by the Registrant March 3, 1995 16) Port City Electrical Supply, Inc., a Georgia 	 corporation, acquired by the Registrant March 30, 1995 17) Elec-Tel Supply Company, a Georgia corporation, 	 acquired by the Registrant April 3, 1995