Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6057 found under Disc Adjusting With by Drs Sustainment Systems Inc. The National Stock Number assigned to this part is 4140005478890, and the Federal Supply Class is 4140 Fans Air Circulators And Blower Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6057.