Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number JU20-28Y found under Oscillator Noncrystal Controlled by Accutronics Datacom Inc. The National Stock Number assigned to this part is 5955008825451, and the Federal Supply Class is 5955 Oscillators And Piezoelectric Crystals. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like JU20-28Y.