Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 30190B16 found under Seal by Rtc Parts Inc. The National Stock Number assigned to this part is 5330009266351, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 30190B16.