Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12 00X2 00-20B6-A-N found under O Ring by Societe Technique Armoricaine. The National Stock Number assigned to this part is 5331142842800, 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 12 00X2 00-20B6-A-N.