Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4-258 2E ADVER6 PART 4 found under Retainer Packing by Wandfluh Ag Hydraulikelektronik. The National Stock Number assigned to this part is 5330013810056, 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 4-258 2E ADVER6 PART 4.