Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C5013 PIECE 32 found under Spring Helical Compression by Singer Valve Inc. The National Stock Number assigned to this part is 5360012020591, 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 C5013 PIECE 32.