Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 93A057 found under Filter Assembly Electrical by Ducommun Labarge Technologies Inc. The National Stock Number assigned to this part is 5915009530391, 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 93A057.