Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A141539 found under Spring Helical Extension by Rohde And Schwarz Inc. The National Stock Number assigned to this part is 5360000792184, and the Federal Supply Class is 5360 Coil Flat Leaf And Wire Springs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A141539.