Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3 1 2R found under Press Arbor Hand Operated by Belco Industries Inc. The National Stock Number assigned to this part is 3444002432652, and the Federal Supply Class is 3444 Manual Presses. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3 1 2R.