Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NP11057PC5041 found under Spring Helical Comp by Cooper Cameron Corp. The National Stock Number assigned to this part is 5360004149129, 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 NP11057PC5041.