Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B951-3200 found under Tachometer Sensing by Essex Electro Engineers Inc. The National Stock Number assigned to this part is 5999014817911, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B951-3200.