Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B3135 found under Hose Assembly by Rockwell International Corp. The National Stock Number assigned to this part is 4720000681167, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B3135.