Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number IF11S-10 ILK-4 found under Borescope Assy Fle by Olympus America Inc. The National Stock Number assigned to this part is 6650000853846, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like IF11S-10 ILK-4.