Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4120PC42 found under by Pneumercator Companyinc. The National Stock Number assigned to this part is 9160005979631, and the Federal Supply Class is 9160 Miscellaneous Waxes Oils And Fats. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4120PC42.