These custom AN316C8R jam nuts were manufactured domestically using DFARS compliant material to the AN316C8R specifications. 316 stainless steel hex bar stock was used for the production and parts went through NADCAP certified passivation per AMS QQ-P-35 with additional Proof Load lab testing per FF-N-836E to meet 12,000 lbf minimum criteria. Full certs were provided with the parts per customer requirements.