DLA Weapons Support has issued a Sources Sought Notice for market research to determine whether other companies can manufacture or legitimately obtain NSN 1560-00-780-6138, auxiliary power plant air duct, under Weapon System Designator Code 11F. The item is currently manufactured by Arrowhead Products Corp. (CAGE 70628), part number 12636-101A, and Senior Operations LLC (CAGE 98769), part number 1509935-101. Because the item is source controlled, DLA is not authorized to add new sources; only the manufacturing source specified on the source control drawing can approve new sources. Interested parties seeking to become an approved source may submit a voluntary response by email to Gladys Brown, and the buyer will provide information for the cognizant design authority authorized to approve sources. This notice is for informational purposes only, is not a solicitation or request for offer, and does not commit the government to award a contract; no funds are available to pay for response preparation.