Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 87291-01 found under Head And Bearing Assembly by Thomas Instrument And Machine Co. The National Stock Number assigned to this part is 1560009560394, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 87291-01.