Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PS3-30-12909 found under Phase Shifter Elect by Merrimac Industries Inc. The National Stock Number assigned to this part is 5915004422183, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PS3-30-12909.