Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 25502-27B25 found under Gauge Press Aircraf by 3D Instruments Llc. The National Stock Number assigned to this part is 4710015805208, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 25502-27B25.