Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D5055 PIECE 23 found under Collar Shaft by Roth Tank Co. The National Stock Number assigned to this part is 3040012301020, 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 D5055 PIECE 23.