Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K42C0117-4 found under Shielding Gasket Electronic by Mcdonnell Douglas. The National Stock Number assigned to this part is 5999013191649, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like K42C0117-4.