Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 313-10-9 found under by Columbia Machine Inc. The National Stock Number assigned to this part is 8140011348364, and the Federal Supply Class is 8140 Ammunition And Nuclear Ordnance Boxes Packages And Special Containers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 313-10-9.