This is a total small business set-aside contract for self-locking heavy hex nuts (MIL-DTL-32258) used in critical shipboard systems, designated as Level I/SUBSAFE Special Emphasis material. The contractor must meet stringent quality, traceability, and certification requirements, including First Article Testing and a quality system per ISO-9001. Final delivery of material must occur within 365 days after the contract's effective date, with certification data submitted 20 days prior to scheduled delivery. No budget amount is specified, and performance occurs at the contractor's facility subject to Government source inspection. This opportunity is rated "DO" under the Defense Priorities and Allocations System.