Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12299088 found under Spring Flat by Ace Aviation Service Inc. The National Stock Number assigned to this part is 5360011085396, and the Federal Supply Class is 5360 Coil Flat Leaf And Wire Springs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12299088.