Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 002 000 0100 0 018A4 found under O Ring by Seepex Inc. The National Stock Number assigned to this part is 5331123483719, 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 002 000 0100 0 018A4.