Skip to content
NAICS 339991, industry

NAICS 339991: Gasket, packing, and sealing device manufacturing

NAICS 339991 is the industry code for gasket, packing, and sealing device manufacturing. Use it on loan applications, tax forms and registrations. Explore financing for manufacturing and start your application when you are ready.

What 339991 covers

This code covers makers of gaskets, packing and sealing devices, such as mechanical seals, O rings of all materials, gaskets and oil seals.

Included in this code

  • Gaskets of all materials
  • Mechanical seals
  • O rings
  • Oil seals
  • Packing and sealing devices

Businesses that use 339991

Gasket cutterMechanical seal makerO ring producer

Financing for this trade

Seal and gasket makers finance cutting and molding equipment with equipment loans and use lines of credit for inventory. Lenders look at industrial customer diversity.

Apply for funding with AI

Is 339991 the right code for a gasket and seal manufacturer?

Yes, if you make gaskets, seals, O rings or packing from any material. Other molded rubber parts belong in 326291, and industrial supply distributors use 423840. Gasket cutting shops using purchased material use 339991. If two codes seem to fit, the activity that produces the most revenue decides, and lenders will expect that same code everywhere.

What is the SBA size standard for 339991?

Under 13 CFR 121.201, a business classified under NAICS 339991 is small if it averages no more than 600 employees, counting affiliates, over the prior 24 months. SBA uses that number for loan eligibility and federal agencies use it for small business set asides. A firm above it can still qualify for SBA 7(a) and 504 loans under the alternative standard of $15 million tangible net worth and $5 million average net income.

How do gasket and seal makers fund operations?

These makers usually finance die cutters, waterjets and molding presses with equipment loans and carry material and finished inventory on a revolving line. Lenders look at customer diversity across energy, industrial and automotive markets. Lenders move fastest when financial statements, tax returns and a debt schedule are ready to share.

What does NAICS 339991 cover?

Gasket, packing, and sealing device manufacturing. Industry level code in NAICS 2022, under 31-33 Manufacturing, 339 Miscellaneous manufacturing, 3399 Other miscellaneous manufacturing, 33999 All other miscellaneous manufacturing.

What financing do NAICS 339991 businesses use?

Equipment financing, working capital, SBA loans and invoice factoring are the products placed most for manufacturing businesses. Start an application and the AI matches the deal to lenders that fund this code.

Where do I put NAICS 339991?

On the SBA loan application, on federal Schedule C or Form 1120, on SAM.gov and state registrations, and on most lender applications. A business can report more than one code; use this one if it describes what produces most of your revenue.