Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ST440-2 found under Connecting Link Rigid by Avibank Mfg Inc. The National Stock Number assigned to this part is 3040016535652, 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 ST440-2.