Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FD-T00-44-006 found under Lockspring Turnlock Fastener by Raytheon E Systems Inc. The National Stock Number assigned to this part is 5325002853374, 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 FD-T00-44-006.