Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M3800-4-0180 found under Hose Assembly Nonme by Senior Flexonics Inc. The National Stock Number assigned to this part is 4720008976369, 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 M3800-4-0180.