Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RM 20 15 found under Block Special Cable Insert by Roxtec Inc. The National Stock Number assigned to this part is 5975013876253, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RM 20 15.