Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XTC20R07 found under Seal Plain by Ta Instrument Case Co. The National Stock Number assigned to this part is 5330012545201, 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 XTC20R07.