Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VDH-1151A found under Switch Thermostatic by Therm O Disc Inc. The National Stock Number assigned to this part is 5930012693871, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like VDH-1151A.