Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HO3 4X5 8-1.75-16-C-1M-F3SS-316 found under Meter Impeller Type Liquid by Hoffer Flow Controls Inc. The National Stock Number assigned to this part is 6680015088916, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HO3 4X5 8-1.75-16-C-1M-F3SS-316.