Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LD91019-1-2 found under Housing Bearing Uni by Dresser Rand Co. The National Stock Number assigned to this part is 3130011892050, 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 LD91019-1-2.