NAICS 339999

Overview

NAICS 339999 — All Other Miscellaneous Manufacturing — is the residual industry for establishments primarily engaged in manufacturing a diverse array of products that are not classified in any other specific industry within NAICS Subsector 339. It functions as a “not elsewhere classified” bucket, capturing niche, specialty, or unconventional manufactured goods when no more precise NAICS code exists. Because it is residual by design, contractors and agencies should confirm that no narrower manufacturing code better fits the principal product before using this classification. ¹

In federal acquisition, this code appears when requirements span specialty or low-volume items, bespoke or mixed-material products, or assembled kits that don’t align cleanly with other manufacturing industries. Effective market research and source validation should include a check of NAICS cross-references and examples on the official NAICS page to prevent misclassification. ¹

What this NAICS covers

• Industry scope: Establishments primarily engaged in manufacturing diverse products not classified in any other industry within Subsector 339 fall under NAICS 339999. Use only when no more precise manufacturing code exists in the subsector. ¹
• Typical products included: Items such as candles; wigs, hairpieces, and wiglets; combs and hair accessories; artificial or decorative trees (e.g., holiday/seasonal); trophies and awards (except precious-metal jewelry); and other novelty or specialty goods specifically listed on the official NAICS page. ¹
• Materials and processes: Coverage is material-agnostic (e.g., plastic, wood, textile, mixed materials) so long as the principal product is not otherwise assigned to a more specific NAICS in Subsector 339. Production can include forming, molding, assembling, finishing, and packaging. ¹
• Federal use cases: Requirements seeking niche, specialty, or non-standard manufactured items without a dedicated NAICS—particularly low-volume or custom goods—appropriately use NAICS 339999 after confirming no narrower code applies. ¹
• Boundary notes (exclusions): Excludes products explicitly classified in other 339 industries (e.g., jewelry, toys and games, office supplies except paper, sign manufacturing, musical instruments, brooms/brushes, gaskets and sealing devices, burial caskets). If the principal product aligns with a specific industry, use that code rather than NAICS 339999. ¹
• Classification tip: Compare the requirement’s dominant product to the examples and cross-references on the official Census page. If any listed, more-specific 339 industry directly matches, select that code instead of the residual NAICS 339999. ¹

Related NAICS and PSC codes

• Adjacent NAICS within Subsector 339 (use these if they more precisely describe the principal product):

  • NAICS 339910 — Jewelry and Silverware Manufacturing; use for jewelry, precious-metal items, or silverware. ¹
  • NAICS 339920 — Sporting and Athletic Goods Manufacturing; use for sports equipment. ¹
  • NAICS 339930 — Doll, Toy, and Game Manufacturing; do not default to NAICS 339999 when this specific fit exists. ¹
  • NAICS 339940 — Office Supplies (except Paper) Manufacturing; use for non-paper office items. ¹
  • NAICS 339950 — Sign Manufacturing; NAICS 339999 excludes signs. ¹
  • NAICS 339991 — Gasket, Packing, and Sealing Device Manufacturing; use for gaskets/seals. ¹
  • NAICS 339992 — Musical Instrument Manufacturing; use for instruments and parts. ¹
  • NAICS 339993 — Fastener, Button, Needle, and Pin Manufacturing; use when these components are the principal product. ¹
  • NAICS 339994 — Broom, Brush, and Mop Manufacturing. ¹
  • NAICS 339995 — Burial Casket Manufacturing. ¹

• PSC selection guidance:

  • There is no one-to-one PSC mapping for NAICS 339999. PSC must reflect the specific end item (e.g., candles vs. wigs vs. trophies). Not specified by official sources. ¹

Frequently asked questions

• What is NAICS 339999 used for?

  • It is the residual manufacturing category for products in Subsector 339 that do not fit any more specific industry. Use it when the principal product cannot be classified elsewhere within the subsector’s defined industries and cross-references. ¹

• How do I confirm NAICS 339999 is the right fit?

  • Apply the principal product test and review the official examples and cross-references on the NAICS page. If any specific 339 industry clearly matches, use that code instead of the residual classification. ¹

• What are examples of products covered by this code?

  • Examples include candles; wigs and hairpieces; combs and hair accessories; artificial or decorative trees; and trophies and awards (non-precious-metal), as cited on the official industry page. ¹

• Are services included under NAICS 339999?

  • No. This is a manufacturing industry. Standalone services (e.g., maintenance, design-only, or consulting) should be classified under appropriate services NAICS codes; only manufacturing establishments belong here. ¹

• How should I select a PSC when using NAICS 339999?

  • There is no prescribed one-to-one PSC pairing. Choose the PSC that best describes the specific end item being procured (e.g., candles vs. wigs vs. trophies); NAICS materials do not specify PSC mappings for this code. ¹

Useful resources

• Official NAICS 2022 industry page for NAICS 339999 — authoritative definition, examples, and cross-references. ¹
• 2022 NAICS Manual (PDF) — comprehensive definitions and index terms across all NAICS levels. ²
• NAICS 2022 change notes — structural updates from 2017 to 2022. ³
• SBA Table of Small Business Size Standards — determine the current size standard for NAICS 339999. ⁴
• SBA Nonmanufacturer Rule guidance — eligibility for small business supply contracts under manufacturing NAICS. ⁵
• PSC Selection Tool — keyword-driven lookups to identify candidate PSCs. ⁶
• Product and Service Codes (PSC) Manual — official PSC definitions and usage notes. ⁷
• NAICS 2022↔2017 Concordance — crosswalk to map codes across editions. ⁸
• NAICS 2022 Structure (XLSX) — hierarchical list of all industries; review Subsector 339 before defaulting to NAICS 339999. ⁹

References

1. https://www.census.gov/naics/?input=339999&year=2022&details=339999
2. https://www.census.gov/naics/reference_files_tools/2022_NAICS_Manual.pdf
3. https://www.census.gov/naics/reference_files_tools/2022_NAICS_Changes.pdf
4. https://www.sba.gov/document/support--table-size-standards
5. https://www.sba.gov/federal-contracting/contracting-guide/non-manufacturer-rule
6. https://psctool.us
7. https://www.acquisition.gov/psc-manual
8. https://www.census.gov/naics/concordances/2022_to_2017_NAICS.xlsx
9. https://www.census.gov/naics/reference_files_tools/2022_NAICS_Structure.xlsx