Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BT 24 WO found under Cap Protective Dust And Moisture Seal by Bean Rubber Mfg Co. The National Stock Number assigned to this part is 5340011429487, 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 BT 24 WO.