Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 52T091 found under Stopinterlocking Slide Fastener by United Technologies Corporation. The National Stock Number assigned to this part is 5325016923564, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 52T091.