Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 102 025 90B found under Seal Nonmetallic St by Rolls Royce Marine North America. The National Stock Number assigned to this part is 5330016023144, 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 102 025 90B.