Precision Steel Bar Manufacturing – 4130 Chrome Moly Alloy

A 3-foot section of 1.0-inch diameter by 3.0-inch wide 4130 normalized chrome molybdenum alloy steel bar must be manufactured from a single heat lot to meet stringent technical specifications outlined in AMS-S-6758B and DLA quality standards. The material must be produced under consistent metallurgical conditions to ensure uniformity, mechanical properties, and compliance with defense-grade requirements, emphasizing structural integrity and performance under high-stress environments. Production must adhere strictly to the alloy composition, heat treatment, and dimensional tolerances specified for aerospace and defense applications. The contract is issued as a subcontract under the Defense Logistics Agency, part of the Department of Defense, with performance required at Jacksonville, Florida, ZIP code 32212-0016. The solicitation was posted on July 21, 2026, and responses are due by July 29, 2026, within a narrow nine-day window. The North American Industry Classification System code 331221 identifies the scope as steel product manufacturing from purchased steel. All work must align with DLA’s quality assurance protocols and traceability requirements, including full material certification and documented compliance with the single-heat-lot sourcing mandate to guarantee batch consistency and reliability for critical defense components.