Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 38U92 (4100-136009 found under Cylinder Assembly Actuating Line by Cylinder City Inc. The National Stock Number assigned to this part is 3040012275448, 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 38U92 (4100-136009.