Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 65506-09017-012 found under Tube Assembly Fire Extinguishing by Sikorsky Aircraft Corporation. The National Stock Number assigned to this part is 4210001288112, and the Federal Supply Class is 4210 Firefighting Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 65506-09017-012.