Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M1689IM6 found under Pin Hinge Valve by Shipham Valves A Division Of. The National Stock Number assigned to this part is 5315004287838, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M1689IM6.