Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RG40CU found under Cable Radio Frequency by Joint Electronics Type Designation. The National Stock Number assigned to this part is 6145005422773, and the Federal Supply Class is 6145 Wire And Cable Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RG40CU.