We supplied 100 pieces of these 2.87" free length custom .250 wire compression springs to our aerospace customer with a first article inspection report (FAIR), MIL-STD-6866 dye penetrant inspection report (Type 1, Method A, Sensitivity Level 3), heat treat certs, and a certificate of conformance.  The outside diameter is 1.218 +/- .010" and the inside diameter is .718".  Heat treat was done to condition CH900 per MIL-H-6875.  Production was done domestically with a rush option to help our customer get out of a timing jam.

Large quantities of these custom made aerospace compression springs would be best supplied on a 12 month blanket purchase order basis.  The Blanket Order concept allows the customer to access the large quantity cost savings without paying upfront for the entire large quantity order. Instead we take on the burden of carrying the bulk inventory and only release the parts as needed, or often on a pre-scheduled basis provided by the customer.