Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L015591S5 12D found under Coupling Half Quick Disconnect by Eaton Corporation. The National Stock Number assigned to this part is 4730005802535, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like L015591S5 12D.