Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TMU-42553 30 found under Micrometer Electronic Mutual Ind by Telemeter Electronic Gmbh. The National Stock Number assigned to this part is 6695014427958, 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 TMU-42553 30.