Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 236-6221 found under Sensor Speed Spec by Singapore Technologies Kinetics Ltd. The National Stock Number assigned to this part is 2990015962027, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 236-6221.