These are custom stainless steel compression springs we supply our aerospace customer, in 302 stainless steel material to AMS 5640. The initial production run was relatively small at just 500 pieces, completed domestically with First Article Inspection Report (FAIR) and all applicable certifications. The freestanding length of the custom spring was set at 2.472 inches +/- .010 and the outside diameter of the coil is set at .261 +/- .005 inches.
