Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y1955 found under Network Resistor by Bae Systems Information And Electronic Systems Integration I Div Microwave Elect. The National Stock Number assigned to this part is 5915008326978, 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 Y1955.