Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RB1152 found under Cap Protective Dust And Moisture by W S Darley And Co. The National Stock Number assigned to this part is 5340015591789, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RB1152.