Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WG-5-7500-X500-W W found under Filter Band Pass by Spectrum Sei Microwave Inc. The National Stock Number assigned to this part is 5915013324487, 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 WG-5-7500-X500-W W.