Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 990-1946 found under Bearing Unit Roller by A L D Inc. The National Stock Number assigned to this part is 3130002202680, and the Federal Supply Class is 3130 Bearings Mounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 990-1946.