This is a Navy contract for the manufacture and supply of MS17828-16C self-locking hexagon nuts, designated as Level I/SUBSAFE/SOC special emphasis material for use in critical shipboard systems. The procurement is a total small business set-aside requiring First Article Testing and contractor compliance with strict quality, traceability, and certification requirements under ISO-9001 and applicable military specifications. Final delivery of material is required on or before 365 days after the effective date of the resulting contract, with First Article Test Reports due 120 days after contract award and certification data due 20 days prior to scheduled delivery. The nuts must be manufactured in accordance with NASM25027 using specified materials such as QQ-N-281, with detailed marking, testing, and configuration control requirements enforced throughout production. Performance