USS Nimitz (CVN-68) — Asbestos Aboard the Lead Nuclear Supercarrier

USS Nimitz (CVN-68) — the lead ship of the Nimitz class nuclear-powered aircraft carriers and the most powerful warship type in the world — was laid down at Newport News Shipbuilding in June 1968, launched in May 1972, and commissioned in May 1975. The ship was powered by two Westinghouse A4W pressurized water reactors driving four sets of steam turbines on four shafts, producing 260,000 shaft horsepower — sufficient to drive the 100,000-ton carrier at speeds in excess of 30 knots. USS Nimitz served as the lead ship and operational test platform for the class, deploying to the Mediterranean and the Western Pacific through the Cold War, participating in the 1980 Iran hostage rescue attempt (Operation Eagle Claw), and conducting operational deployments through the post-Cold War era. Built during the period 1968–1975 when the Navy’s asbestos phase-out was underway but not yet complete, USS Nimitz incorporated asbestos-containing materials in secondary steam system insulation, crew habitability spaces, and interior construction consistent with the transitional construction specifications applied during the ship’s construction period at Newport News.

Nuclear Plant Secondary Steam System Asbestos

Nimitz’s secondary steam systems incorporated asbestos insulation:

• Secondary steam system pipe insulation — the secondary side steam systems of USS Nimitz’s A4W reactor plant — steam generators, steam distribution headers, main steam piping, and auxiliary steam systems serving ship’s service turbine generators and hotel service systems — incorporated thermal insulation on the secondary steam piping and components. The ship’s construction during 1968–1975 used insulation materials that in some secondary steam system applications incorporated asbestos-containing thermal insulation on steam piping consistent with the transitional Navy construction specifications of the period. Machinist’s Mates and nuclear-trained engineering personnel working in Nimitz’s nuclear propulsion spaces worked in proximity to the secondary steam system insulation throughout engineering watch standing
• Ship’s Service Turbine Generator (SSTG) insulation — the ship’s service turbine generators providing electrical power for USS Nimitz’s massive hotel load — carrier aviation, weapons, and habitability systems consuming power on a scale exceeding some small cities — incorporated steam admission piping and turbine casings with asbestos-containing insulation materials. Engineering personnel maintaining the SSTG installations in Nimitz’s machinery spaces worked in proximity to SSTG steam system insulation throughout generator maintenance duties

Hangar Bay and Aviation Spaces Asbestos

Nimitz’s aviation spaces incorporated asbestos in construction:

• Hangar bay construction — USS Nimitz’s three-section hangar bay — the largest enclosed aviation maintenance space on any warship — was constructed with asbestos-containing fire-resistant construction materials in the hangar bay structural elements, overhead construction, and boundary bulkheads consistent with the ship’s 1968–1975 construction period specifications. Aviation Machinist’s Mates, Aviation Boatswain’s Mates, and other air wing maintenance personnel performing aircraft maintenance in the Nimitz hangar bay accumulated background asbestos exposure from the asbestos-containing hangar bay construction throughout their carrier air wing deployments
• Aviation fuel and weapons systems spaces — the aviation fuel handling systems and weapons storage and handling systems in USS Nimitz incorporated piping systems with asbestos-containing gasket and insulation materials in the fuel and weapons system piping installed during the ship’s construction period

Crew Habitability Space Construction

Nimitz’s enormous crew spaces incorporated transitional construction materials:

• Crew berthing and living spaces — USS Nimitz berthed a crew of approximately 5,000 sailors and air wing personnel in crew berthing spaces constructed during the 1968–1975 construction period. The interior construction of Nimitz’s crew berthing, mess, and living spaces incorporated transitional-era asbestos-containing floor tile, ceiling materials, and interior construction products consistent with the Navy’s mid-construction-period specifications. The crew members who served aboard Nimitz during the ship’s early commissioned service accumulated background asbestos exposure from the asbestos-containing interior construction materials in the crew habitability spaces

VA Claims for USS Nimitz Veterans

VA presumptive service connection under 38 CFR § 3.309(d) covers asbestos exposure aboard Navy aircraft carriers. Machinist’s Mates, nuclear-trained engineering personnel, aviation ratings, and crew members who served aboard USS Nimitz (CVN-68) during the ship’s commissioned service and have since been diagnosed with mesothelioma, asbestosis, or asbestos-related lung cancer may qualify for VA disability benefits.

Source notes: equipment-manifest entries (where shown) are sourced from public-record BUSHIPS (Bureau of Ships) documentation, NARA archives, and the public asbestos litigation record. Manufacturer attributions link to documented asbestos-product histories on AsbestosIndex.com where available. Nothing on this page constitutes medical or legal advice.