Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WR1-140-WB1-140 found under Heat Sink Electrical Electronic by Barry Wright Corporation. The National Stock Number assigned to this part is 5999012398845, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WR1-140-WB1-140.