Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 280 087 04 ITEM 18 found under O Ring by Rolls Royce Oy Ab. The National Stock Number assigned to this part is 5331014562688, 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 280 087 04 ITEM 18.