Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 554899 found under Shaft Pinion by Galow H Co Inc. The National Stock Number assigned to this part is 3040008870255, 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 554899.