Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20500-0504 found under Cable Assembly Spec by Recon Opticalinc. The National Stock Number assigned to this part is 6150014484811, and the Federal Supply Class is 6150 Miscellaneous Electric Power And Distribution Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 20500-0504.