Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 16KNS-16E POS.-39 found under O Ring by Acta Maskinfabrik A S Acta Miljoe. The National Stock Number assigned to this part is 5331222692175, 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 16KNS-16E POS.-39.