Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CLC-H2181PC389 AND PC414 found under Seal Ring Metal by Lowe Charles Co The. The National Stock Number assigned to this part is 5330008588646, 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 CLC-H2181PC389 AND PC414.