NAICS UNIVERSITY · Free research for insurance agents

Gasket, Packing, and Sealing Device Manufacturing

NAICS 339991 · United States · 2022 edition

This U.S. industry comprises establishments primarily engaged in manufacturing gaskets, packing, and sealing devices of all materials.

UW takeaway · AI logic + saved research

Start the review with products liability.

For Gasket, Packing, and Sealing Device Manufacturing, the saved research highlights products liability, employee injuries, commercial property. Confirm how these arise in the actual operation, what controls are used and whether additional services change the proposed coverage.

Questions to ask

  1. What are the primary end markets and applications for your products — automotive, industrial, aerospace, chemical processing, or other?
  2. Are any products supplied to aerospace, defense, medical device, or nuclear applications?
  3. What materials are used in production — rubber, PTFE, metal, cork, composites — and what chemicals or solvents are on-site?
  4. What is the scope of distribution — direct OEM, aftermarket, distributors, or all of the above?
  5. What is the prior products liability loss history, and have there been any downstream failure claims?
  6. For Gasket, Packing, and Sealing Device Manufacturing, what should the underwriter know about products supplied to aerospace, defense, nuclear, or medical device applications where component failure consequences are severe?
  7. For Gasket, Packing, and Sealing Device Manufacturing, what should the underwriter know about prior products liability claims involving downstream system failures or personal injury?
  8. For Gasket, Packing, and Sealing Device Manufacturing, what should the underwriter know about significant on-site chemical storage, solvent use, or rubber vulcanization operations with inadequate fire suppression?

Activities described by this code

Other activities to examine

Census classification reference

For educational purposes only. AI-generated insurance research and automated logic can contain errors. Independently verify classification and coverage decisions.

Compare another operation

Insurance operations research — draft

Establishments in this class manufacture gaskets, packing materials, and sealing devices from a variety of materials including rubber, cork, graphite, PTFE, metal, and composite materials. Products are typically sold to industrial OEMs, automotive manufacturers, chemical processors, or aftermarket distributors. Day-to-day operations involve cutting, molding, die-pressing, vulcanizing, or machining raw materials into finished sealing components, often to customer-specified tolerances.

Questions to investigate

This insurance research was generated in April 2026. It has not received a complete human review. The October 12, 2026 audit checked codes and titles only, not descriptions or coverage assertions.

Classification workflow · Multiple-operation workflow