Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 218-41375-TD ITEM 1.53.5 found under O Ring by Moog Inc. The National Stock Number assigned to this part is 5331001660963, 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 218-41375-TD ITEM 1.53.5.