Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A15120 ITEM 63 found under Seal Plain by David Brown Gear Systems Limited. The National Stock Number assigned to this part is 5330013605257, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A15120 ITEM 63.