Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TG51HL0857 found under by Dynamic Technology Inc. The National Stock Number assigned to this part is 3040012798601, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like TG51HL0857.