NAICS 331

Primary Metal Manufacturing

752 active contract opportunities

752

Active Opportunities

565

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding174
  • Iron and Steel Pipe and Tube Manufacturing from Purchased Steel170
  • Other Aluminum Rolling, Drawing, and Extruding98
  • Rolled Steel Shape Manufacturing79
  • Copper Rolling, Drawing, Extruding, and Alloying79

Set-Aside Distribution

  • 657
  • Small Business38
  • Small Business Set Aside - Total34
  • No Set Aside14
  • HUBZone3

Top Locations

  • OH347
  • PA236
  • VA76
  • WA17
  • NH16

About NAICS331

The North American Industry Classification System (NAICS) code 331 covers primary metal manufacturing. Federal agencies use NAICS codes to classify contracts by industry. Businesses should register their applicable NAICS codes in SAM.gov.

47-PIPE ASSEMBLY,METAL

DEPT OF DEFENSE
RICHMOND, VA
NAICS 331420
Posted Sep 9, 2026
Due Sep 17, 2026

47-TUBE,METALLIC

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331210
Posted Sep 9, 2026

47-TUBE,METALLIC

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331210
Posted Sep 9, 2026
Due Sep 24, 2026
HUBZone

95-BAR,METAL

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331110
Posted Sep 9, 2026

61-CABLE,POWER,ELECTRICAL

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331318
Posted Sep 9, 2026
Due Sep 24, 2026
Small Business Set Aside - Total

95-SHEET,METAL

DEPT OF DEFENSE
PHILADELPHIA, PA
NAICS 331315
Posted Sep 9, 2026
Due Sep 14, 2026
Small Business Set Aside - Total

95-PLATE,METAL

DEPT OF DEFENSE
PHILADELPHIA, PA
NAICS 331221
Posted Sep 9, 2026
Due Sep 21, 2026
Small Business Set Aside - Total

Bent Tube & Fittings

DEPT OF DEFENSE
ROCK ISLAND, IL
NAICS 331110
Posted Sep 9, 2026
Due Sep 14, 2026
No Set Aside

53-SPRING,LEAF

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331318
Posted Sep 8, 2026
Due Sep 21, 2026
Small Business Set Aside - Total

47-TUBE,METALLIC

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331210
Posted Sep 8, 2026
Due Sep 22, 2026

MSKT Guardrail End Terminal

DEPT OF DEFENSE
FORT DRUM, NY
NAICS 331221
Posted Sep 8, 2026
Due Sep 12, 2026
Small Business Set Aside - Total

47-TUBE ASSEMBLY,METAL

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331210
Posted Sep 8, 2026

95-BAR,METAL

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331110
Posted Sep 8, 2026

47-TUBE ASSEMBLY,METAL

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331420
Posted Sep 8, 2026

47-TUBE ASSEMBLY,METAL

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331420
Posted Sep 8, 2026

95-SHEET,METAL

DEPT OF DEFENSE
PHILADELPHIA, PA
NAICS 331491
Posted Sep 8, 2026
Due Sep 21, 2026
Small Business Set Aside - Total

53-INSERT,SCREW THREAD

DEPT OF DEFENSE
RICHMOND, VA
NAICS 331315
Posted Sep 7, 2026
Due Sep 22, 2026
Small Business Set Aside - Total

53-SPRING,HELICAL,COMPRES

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 331318
Posted Sep 7, 2026
Due Sep 22, 2026

95-PLATE,METAL

DEPT OF DEFENSE
PHILADELPHIA, PA
NAICS 331315
Posted Sep 7, 2026
Due Sep 18, 2026
HUBZone

95-PLATE,METAL

DEPT OF DEFENSE
PHILADELPHIA, PA
NAICS 331491
Posted Sep 7, 2026
Due Sep 18, 2026
WOSB