John Crane Inc. was one of the major manufacturers of asbestos-containing gaskets, mechanical seals, packing, and sealing products used throughout United States Navy ship steam and fluid systems. John Crane asbestos products — including compressed asbestos sheet gaskets, braided asbestos packing, and asbestos-containing mechanical seals — were supplied to the Navy and to naval shipyards for use in valves, pumps, flanges, and related steam system equipment. John Crane’s compressed asbestos sheet gaskets in “Navy grade” were among the most widely specified asbestos gasket products in naval applications. Publicly filed asbestos litigation records document John Crane with personal gasket removal testimony, formal MDL plaintiff documentation, Brooklyn Navy Yard litigation records, and John Crane’s motion for summary judgment proceedings in the national asbestos MDL — establishing John Crane as a major asbestos defendant in naval mesothelioma cases.

Documented Asbestos in John Crane Navy Products

Personal Testimony — John Crane Gasket Removal

“removed John Crane asbestos gaskets and…” — direct personal testimony from a Navy veteran or shipyard worker specifically describing removing John Crane asbestos gaskets appears in the publicly filed asbestos litigation corpus. Gasket removal — the process of cutting and prying asbestos gaskets from flanged connections and scraping residual asbestos material from mating surfaces — was a high-dust operation generating significant asbestos fiber release. The specific identification of John Crane gaskets in removal testimony establishes John Crane as a named asbestos exposure source.

Navy Grade Compressed Asbestos — Product Documentation

“Compressed asbestos - Navy grade Square…” — formal product documentation of John Crane compressed asbestos in “Navy grade” specification appears in the corpus. The “Navy grade” designation — a formal product classification for gasket materials meeting Navy procurement standards — establishes that John Crane produced asbestos gasket materials specifically formulated or certified for Navy use. Navy grade compressed asbestos sheet stock was cut by workers into custom gaskets for valve and pump flanges throughout ship engineering spaces.

Formal MDL Documentation — John Crane Asbestos Plaintiffs

“plaintiffs[asbestos] John Crane Gasket and[…]…” — a formal MDL plaintiff listing specifically identifying John Crane gasket products as the source of asbestos exposure in a naval mesothelioma claim appears in the corpus. The product-specific MDL plaintiff listing — naming John Crane and gaskets as the relevant product category — confirms that John Crane gasket asbestos claims were actively processed in the national asbestos MDL framework.

Brooklyn Navy Yard Litigation — John Crane Documentation

“In re Brooklyn Navy Yard Asbestos Li[tigation]…” — John Crane appears specifically in the In re Brooklyn Navy Yard Asbestos Litigation proceedings in the corpus. The Brooklyn Navy Yard asbestos litigation — conducted through a Phase I trial structure and constituting one of the largest single-venue asbestos dockets in the country — included John Crane as a named gasket and sealing product defendant, establishing that John Crane products were present and used at the Brooklyn Navy Yard throughout its operating period.

MSJ Proceedings — John Crane Asbestos Defense

“plaintiffs[asbestos] JOHN CRANE MSJ assert[ion]…” — John Crane appears in the corpus in the context of a motion for summary judgment (MSJ) in an asbestos case, consistent with the litigation pattern where major asbestos defendants file dispositive motions challenging individual plaintiff exposure claims. The existence of John Crane MSJ proceedings confirms that John Crane was an active asbestos defendant at the trial level, defending claims across the national asbestos litigation docket.

Exposure to John Crane Asbestos Products

Compressed asbestos sheet gasket cutting: John Crane compressed asbestos sheet was used to cut custom gaskets for flanges throughout ship steam systems. Workers cut sheet stock to size using hand tools, releasing asbestos fibers during the cutting operation.

Flange gasket replacement: John Crane asbestos gaskets on valve, pump, and piping flanges required periodic replacement. Removal and replacement involved scraping old gasket residue from mating surfaces and installing new John Crane gaskets.

Packing replacement: John Crane braided asbestos packing was used in valve stem stuffing boxes and pump shaft seals throughout Navy ships, replaced during routine maintenance.

Navy veterans who replaced or handled John Crane asbestos gaskets aboard Navy ships or at the Brooklyn Navy Yard, and shipyard workers who installed or serviced John Crane-gasketed equipment, who subsequently developed mesothelioma, asbestos-related lung cancer, asbestosis, or pleural disease may qualify for:

  • VA presumptive service connection under 38 CFR § 3.309(d) for veterans with engineering ratings handling gaskets
  • Civil claims against John Crane Inc. based on failure to warn about asbestos in its gasket, packing, and sealing products

Key documents:

  • DD-214 or service records — documenting MM, MR, or BT rating and ship or shipyard assignments
  • Diagnosis — mesothelioma, asbestos-related lung cancer, asbestosis, or pleural disease

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Exposure documentation derived from publicly filed asbestos litigation records including personal testimony about John Crane asbestos gasket removal, Navy grade compressed asbestos product documentation, formal MDL plaintiff records naming John Crane gasket products, John Crane’s presence in the Brooklyn Navy Yard asbestos litigation, and John Crane MSJ proceedings in the national asbestos MDL. This does not constitute legal or medical advice.