3HD 3040 017330673 D5, shaft

The Department of the Navy's Naval Supply Systems Command (NAVSUP Weapon Systems Support, Mechanicsburg) seeks quotations for a shaft, NSN 3HD 3040-01-733-0673, for the Deep Submergence Systems Program, with offers due November 20, 2026 at 4:30 PM local time. The procurement is a Total Small Business set-aside.

Amendment 0003 extends the due date and reduces line item 0001AA from 24 each (EA) to 10 EA. Offerors must acknowledge the amendment before the extended deadline by completing items 8 and 15 and returning the specified copies, acknowledging receipt on each offer copy, or submitting a separate letter or telegram referencing the solicitation and amendment numbers. Failure to acknowledge may result in rejection of the offer. Delivery is required within 200 days of order date, FOB Destination, to Portsmouth Naval Shipyard (N50286). Place of performance is Mechanicsburg, Pennsylvania. NAICS is 333613, Mechanical Power Transmission Equipment Manufacturing, and PSC is 3040.

The shaft must be manufactured to NAVSEA drawing 5486623, Item 82, from QQ-N-286 material in Form 2, Condition Hot Finished and Age Hardened. The material is Special Emphasis, Level I, Scope of Certification. Required inspection and testing include ultrasonic inspection of starting material, slow strain rate tensile testing by specified laboratories, thread inspection per FED-STD-H28, and quantitative chemical and mechanical analysis with full certification documentation. Packaging must comply with MIL-STD-2073, with SMIC designations D4/D5/D7 DSS-SOC marked in red. Certification data must be submitted to Portsmouth Naval Shipyard via WAWF for review and acceptance, and no material may ship before acceptance. The contractor must maintain an ISO 9001 quality system with ISO-10012 or ANSI-Z540.3 calibration requirements and provide a Quality Assurance Manual demonstrating acceptable controls.