Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 11131-525 found under Hose Assembly Metal by F M H Corporation. The National Stock Number assigned to this part is 4720014923715, 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 11131-525.