Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LMT 5 56 MARS L SECT found under Training Aid Small by Lewis Machine Llc. The National Stock Number assigned to this part is 6910016504479, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LMT 5 56 MARS L SECT.