Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PD18303-164 found under Shaft Shouldered by Enertec America Inc. The National Stock Number assigned to this part is 3040012979272, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PD18303-164.