Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P2499-426 found under Ring Retaining by L3 Communications Corp. The National Stock Number assigned to this part is 5325002635877, 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 P2499-426.