Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U2146159909 18 found under Fastener Turnlock by Unifab Industries Inc. The National Stock Number assigned to this part is 5325012082574, 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 U2146159909 18.