Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 45-42936 found under Foil Patch by Dutch Valley Supply Co. The National Stock Number assigned to this part is 1680016088474, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 45-42936.