Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4091015_1 found under Spacer Straight by Raytheon Secure Information Systems. The National Stock Number assigned to this part is 5365015805455, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4091015_1.