Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3 0253 9919 0 found under Gearshaft Spur by Eugen Schmd And Assocs Cnsltng E. The National Stock Number assigned to this part is 3040123411218, 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 3 0253 9919 0.