Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T12615329 ITEM N100-104 found under Seal Ring Metal by Coltec Industries Inc. The National Stock Number assigned to this part is 5330012813810, 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 T12615329 ITEM N100-104.