Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RYC TAT1251 4 found under Insulation Sleevingelectrical by Te Connectivity Ltd. The National Stock Number assigned to this part is 5970016794976, and the Federal Supply Class is 5970 Electrical Insulators And Insulating Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RYC TAT1251 4.