Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WG31 13 112 found under Filter Subassembly by Insinger Machine Company The. The National Stock Number assigned to this part is 5915015145205, 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 WG31 13 112.