Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0243-10-250B found under Cap Filler Opening by Toyo Kogyo Co Ltd. The National Stock Number assigned to this part is 2590011649245, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 0243-10-250B.