A Quartermaster’s Hidden Exposure Risk
Navy Quartermasters stood watch at the operational heart of every vessel they served—navigating by compass and chart, operating instruments, and coordinating maneuvering evolutions from spaces that appeared to carry minimal occupational hazard. The navigation bridge, chart room, and steering spaces where QMs reportedly spent their careers contained asbestos-containing materials allegedly manufactured by Johns-Manville, Owens-Illinois, and Garlock Sealing Technologies that may have accumulated in dangerous concentrations. Thousands of QM veterans are now developing mesothelioma and asbestosis 20 to 50 years after their service ended. If you served as a Navy Quartermaster and have received an asbestos-related diagnosis, federal law provides both VA benefits with no statute of limitations and a three-year civil compensation window under 46 U.S.C. § 30106—and you should be pursuing both simultaneously, right now.
The Navy Quartermaster Rating: Daily Duties and Shipboard Presence
What Quartermasters Did Aboard Ship
The Navy Quartermaster (QM) rating carried responsibility for the safe navigation of every vessel on which QMs served. Documented duties included:
- Maintaining nautical charts and navigational publications
- Operating and maintaining gyrocompasses, magnetic compasses, and electronic navigation systems
- Standing watch on the navigation bridge and in the pilothouse
- Supervising helm operations and steering casualty drills
- Advising officers on safe navigation routes, bearings, and courses
- Maintaining visual signaling equipment and conducting flag operations
- Plotting dead reckoning positions and vessel location tracking
- Conducting backup steering exercises in the steering engine room
Unlike engineering ratings who spent careers in machinery spaces below the waterline, Quartermasters reportedly worked primarily in the upper structure: the pilothouse, navigation bridge, chart room, and associated steering and flag spaces. These were the command and control spaces of the ship—and they reportedly contained asbestos-containing materials manufactured by Johns-Manville, Armstrong World Industries, and W.R. Grace that Navy personnel were never warned about.
Senior Quartermasters frequently coordinated with engineering and damage control personnel during maneuvering evolutions and casualty drills, bringing them into proximity with spaces where asbestos disturbance from Kaylo pipe insulation, Thermobestos products, and other deteriorating ACMs was reportedly far more common.
Shipboard Compartments Where Quartermasters Allegedly Worked
Navigation Bridge and Upper Structures
Navy Quartermasters had routine, repeated access to the following spaces:
- Navigation Bridge and Pilothouse — the primary watch station, enclosed and ventilated through shared ship-wide systems containing reportedly insulated piping from Crane Co. and other manufacturers
- Chart Room — an enclosed compartment directly adjacent to or below the pilothouse, where nautical charts, instruments, and publications were stored and maintained, with ceiling tiles and bulkhead panels allegedly containing asbestos
- Compass Binnacle Area — the area surrounding magnetic compass installations with equipment housings and insulation materials allegedly supplied by Eagle-Picher
- Flag Bridge and Signal Bridge — open and semi-enclosed spaces on the same vertical structure as the navigation bridge
- Combat Information Center (CIC) — Quartermasters on many vessel classes were required to coordinate with CIC personnel during watch rotations
- Steering Engine Room — QMs conducting steering casualty drills and backup steering exercises reportedly entered the after steering compartment, a machinery space with heavy Cranite and Superex insulation
- Ladder wells and trunk spaces connecting bridge to lower decks — routinely traversed during watch changes and casualty drills, with bulkhead linings allegedly containing asbestos products
Asbestos-Containing Materials in Quartermaster Work Spaces
Products and Materials Allegedly Present
Asbestos appeared throughout Navy vessels built and in service from approximately the 1930s through the late 1970s. In the spaces where Quartermasters routinely worked, the following ACMs were present:
- Thermal pipe insulation (lagging) — Johns-Manville Kaylo, Owens-Corning Thermobestos, and Eagle-Picher pipe insulation on steam and water lines running through or near the bridge structure, chart room overheads, and bulkheads
- Vinyl asbestos floor tiles and adhesives — Georgia-Pacific and Armstrong World Industries products, standard in interior spaces including chart rooms and pilothouses
- Bulkhead insulation panels and fire-resistant wallboard — Monokote spray-applied fireproofing and prefabricated asbestos-containing panels allegedly supplied by Celotex and Gold Bond, used for both thermal and fire protection in enclosed bridge spaces
- Gasket and packing materials — Garlock Sealing Technologies gaskets and W.R. Grace packing materials in ventilation and HVAC equipment servicing bridge spaces
- Cable and wire insulation — Aircell and other proprietary insulations running through the navigation bridge structure and mast supports
- Insulation on compass and gyroscope equipment housings — reportedly containing asbestos compounds in electrical and instrument enclosures
- Paint and coatings — naval specialty paints allegedly containing asbestos compounds during the World War II and Cold War eras, applied throughout bridge structures
- Ceiling tiles and sound dampening materials — Johns-Manville and Celotex ceiling tile products in enclosed bridge spaces
- Sealants and caulking compounds — Unibestos and other trade-name sealants around portholes and ventilation openings
How Quartermasters’ Exposure Occurred: The Mechanism of Risk
The Sealed Chart Room and Enclosed Bridge Environment
The enclosed nature of the chart room created conditions that elevated a Quartermaster’s cumulative asbestos exposure. Chart rooms were typically small, low-ceilinged spaces with limited ventilation—often intentionally sealed to protect sensitive navigational materials from weather, moisture, and electronic interference. When overhead pipe lagging manufactured by Johns-Manville or Eagle-Picher, bulkhead panels from Celotex or Armstrong World Industries, or deck tiles from Georgia-Pacific deteriorated or were disturbed by routine maintenance, asbestos fibers became trapped in the compartment’s limited air volume.
Ventilation System Distribution
Bridge structure ventilation systems reportedly distributed air—and any suspended asbestos fibers from deteriorating Kaylo insulation, Thermobestos products, Monokote fireproofing, or Cranite lagging—throughout interconnected bridge spaces. All personnel standing watch simultaneously on the navigation bridge and pilothouse were potentially exposed to the same air stream. Three factors compounded this risk:
- Quartermasters stood watch rotations of four to six hours at a stretch, multiple times daily, accumulating more hours per day in these specific spaces than most ratings spent in any single compartment
- Chart rooms required daily access for chart updating, instrument maintenance, and record-keeping, creating repeated disturbance of deteriorating insulation from Garlock gaskets, W.R. Grace packing materials, and Johns-Manville panels
- The forward superstructure’s confined volume concentrated airborne fibers in a way that open machinery spaces did not
Movement Between Bridge and Machinery Spaces
Steering evolutions brought QMs into machinery spaces where asbestos insulation from Crane Co., Eagle-Picher, and other manufacturers covered steam lines and machinery surfaces. Any movement between the upper bridge structure and lower machinery, engineering, or damage control spaces—during damage control drills, battle stations, general quarters, or casualty response—may have compounded cumulative exposure across multiple ACM environments. A Quartermaster moving from the chart room to the steering engine room may have contacted undisturbed asbestos, freshly disturbed fibers, and fibers suspended in compartment air within a single evolution.
Navy Ship Classes Where Quartermasters Served
Vessel Classes with Documented Asbestos Use
Navy Quartermasters served aboard virtually every commissioned vessel in the U.S. fleet from the 1930s through the 1990s. The following vessel classes had extensive asbestos applications and QM billets:
Destroyers and Frigate-Class Vessels:
- Gearing-class and Forrest Sherman-class destroyers (reportedly equipped with Johns-Manville Kaylo lagging throughout engineering spaces and bridge structures)
- Spruance-class destroyers (featuring Monokote fireproofing and Thermobestos insulation)
- Knox-class and Garcia-class frigates (outfitted with Cranite and Superex insulation systems)
Cruisers:
- Leahy-class cruisers (containing Garlock gaskets and W.R. Grace packing throughout HVAC systems)
- Belknap-class cruisers (equipped with Armstrong World Industries ceiling tiles and Celotex bulkhead panels)
Aircraft Carriers:
- Essex-class carriers (insulated with Johns-Manville products and Eagle-Picher lagging)
- Midway-class carriers (containing Kaylo pipe insulation and Monokote fireproofing)
- Forrestal-class carriers (outfitted with Thermobestos and Cranite insulation systems)
Submarines:
- Balao-class submarines (featuring Johns-Manville and Eagle-Picher insulation in confined spaces)
- Guppy-converted submarines (retrofitted with Aircell and other proprietary insulations)
Amphibious Assault Ships:
- LPH-class helicopter carriers (equipped with Georgia-Pacific and Gold Bond products)
- LHA-class amphibious assault ships (featuring insulation from multiple manufacturers)
Auxiliary and Fleet Support:
- Fleet oilers and tankers (AO-class vessels, reportedly insulated with Kaylo and Thermobestos)
- Ammunition ships (AE-class vessels, containing Monokote fireproofing and Garlock seals)
- Combat stores ships (AFS-class vessels, equipped with Armstrong and Celotex products)
- Repair ships and support vessels (containing mixed ACM installations from Johns-Manville, Owens-Corning, and W.R. Grace)
Vessel construction dates, modernization programs, and overhauls all affected the type and quantity of asbestos materials installed. Veterans who served aboard any commissioned U.S. Navy vessel are presumed to have had occupational exposure to asbestos-containing materials allegedly manufactured by Johns-Manville, Owens-Corning, Eagle-Picher, Garlock Sealing Technologies, Armstrong World Industries, W.R. Grace, Georgia-Pacific, Celotex, and Crane Co.
Asbestos-Related Diseases: Latency, Diagnosis, and Progression
How Asbestos Causes Disease
Asbestos-related diseases carry a long latency period between initial occupational exposure to products manufactured by Johns-Manville, Owens-Corning, and other major suppliers and clinical diagnosis. Most conditions do not manifest until 20 to 50 years after exposure began. Navy veterans who served in the QM rating during the 1940s through the 1970s are squarely in the demographic window when these diseases typically appear.
Diseases Associated with Navy Asbestos Exposure
The following conditions are directly linked to occupational asbestos exposure from Kaylo, Thermobestos, Monokote, Cranite, Superex, and other ACM products:
- Malignant mesothelioma — a cancer arising from the mesothelial lining of the lungs (pleural mesothelioma), abdomen (peritoneal mesothelioma), or heart (pericardial mesothelioma); this cancer is exclusively associated with asbestos exposure and carries a median survival of 12 to 21 months from diagnosis
- Asbestosis — progressive fibrotic scarring of lung tissue causing permanent respiratory impairment, shortness of breath, and eventual respiratory failure
- Lung cancer — risk is elevated in asbestos-exposed individuals, with further elevation in those with a smoking history
- Pleural plaques and pleural thickening — scarring and calcification of the pleural lining surrounding the lungs; these are markers of prior asbestos exposure and may progress to more serious conditions
- Ovarian cancer — emerging evidence suggests an elevated risk in women with occupational asbestos exposure
VA Presumptive Benefits and Disability Claims
No Deadline, No Causation Burden
Under 38 C.F.R. § 3.309
For informational purposes only. Not legal advice. No attorney-client relationship is created by reading this page. © 2026 Rights Watch Media Group LLC — Disclaimer · Privacy · Terms · Copyright