Thank you for taking an interest in part number 780953S15A, that of which is a Hamilton Sundstrand Corporation product listed with description "Sleeve Air Cooling Duct Aircraft". In addition to being listed with part number 780953S15A, this particular offering also has the NSN 5342016659497, further allowing you to ensure that you only procure the exact aerospace parts you require for your operations. If you would like to begin procurement for your desired NSN parts or simply want to know more about this listing, be sure to fill out and submit the RFQ form provided below with as much information as possible.