Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AWN146-105X5NB72SW found under O Ring by Krupp Atlas Elektronik Gmbh. The National Stock Number assigned to this part is 5331121545942, 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 AWN146-105X5NB72SW.