327211 — Flat Glass Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in (1) manufacturing flat glass by melting silica sand or cullet or (2) manufacturing both flat glass and laminated glass by melting silica sand or cullet (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Establishments primarily engaged in manufacturing laminated glass from purchased flat glass are classified in U.S.
- Industry 327215, Glass Product Manufacturing Made of Purchased Glass.
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3211 - Flat Glass (via SIC1987:3211→NAICS1997:327211→2002:327211→2007:327211→2012:327211→2017:327211→2022:327211)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 3635 — Crystal and Glass Industries Machinery
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 327211 valid in 2022? ▾
Yes, 327211 is a valid 6-digit 2022 NAICS national industry code representing 'Flat Glass Manufacturing' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 327211? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,100 employees for NAICS code 327211 (Flat Glass Manufacturing), calculated based on employees.
What is the legacy SIC equivalent for NAICS 327211? ▾
According to official Census Bureau concordance tables, NAICS code 327211 (Flat Glass Manufacturing) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 3211 - Flat Glass.
Related Pages & Tools
Further regulatory reference links for NAICS code 327211:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 327211 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Flat Glass Manufacturing).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.