The Department of Homeland Security, specifically the U.S. Coast Guard's Aviation Logistics Center, is seeking quotations for the procurement of four Muffler, Duct units, identified by National Stock Number 1560-01-175-8969 and part number 772940-2. This procurement is a total small business set-aside, emphasizing the need for traceability to the Original Equipment Manufacturer, Hamilton Sundstrand Corporation, and requires that all items be new or new surplus with appropriate documentation. The anticipated delivery date for the items is June 23, 2025, with a closing date for offers set for May 13, 2025, at 2:00 PM EDT. Interested vendors should submit their quotations via email to Paige Kressley and the MRR Procurement Mailbox, referencing solicitation number 70Z03825QJ0000268.