Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ATV-618-TR PG 48 KEY 13 found under O Ring by Republic Machinery Co Inc. The National Stock Number assigned to this part is 5331016126552, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ATV-618-TR PG 48 KEY 13.