Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1B311 found under Bracket Shaft by Neac Compressor Service Usa Inc. The National Stock Number assigned to this part is 2815009775454, and the Federal Supply Class is 2815 Diesel Engines And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1B311.