This opportunity is for the manufacture and supply of a specialized, self-locking heavy hex nut made of Nickel-Copper Alloy, designated as SPECIAL EMPHASIS (Level I) material for a crucial shipboard system. The contractor must deliver the material within 365 days after the contract's effective date, with certification data due 20 days prior to that delivery. The contract is a total small business set-aside, and performance will be subject to Government Quality Assurance at the source, with the place of performance requiring authorization for any changes. The work involves stringent quality, traceability, and certification requirements, including a mandatory quality system per ISO-9001 and submission of quality system procedures prior to award. This is a "DX" rated order for national defense under the Defense Priorities and Allocations System.