Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BL101 ITEM 3 found under Hood Compass Binacl by Baker Lyman And Company Inc. The National Stock Number assigned to this part is 5342012907406, 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 BL101 ITEM 3.