Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HS804S17 found under Cylinder Assembly Actuating Line by Bauer Nilsen A S. The National Stock Number assigned to this part is 3040013399849, 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 HS804S17.