Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W7-100-0-8 found under Chart Recording Ins by Weksler Glass Thermometer Corp. The National Stock Number assigned to this part is 7530004973569, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like W7-100-0-8.