Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 48B7863-3 found under Retainer Packing by San Antonio Air Logistics Center. The National Stock Number assigned to this part is 5330005144210, 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 48B7863-3.