Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2075 2.270D X 1.54ID X 3 8SQ found under O Ring by Sur Seal Inc. The National Stock Number assigned to this part is 5331013332689, 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 2075 2.270D X 1.54ID X 3 8SQ.