Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MS73-777 found under Hose Assembly Nonmetallic by Mid State Sales Inc. The National Stock Number assigned to this part is 4720004644230, 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 MS73-777.