Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number G138-274-001 found under Filter Band Pass by Kearfott Corporation. The National Stock Number assigned to this part is 5915004785966, 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 G138-274-001.