Open demand × Metalworking Machinery
Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories FSC 3439
Open solicitations in Federal Supply Class 3439 — real requests for quote a supplier can bid on today, linked to the official DIBBS record for each one — plus the ones we've already recorded as they closed. Nothing here gets deleted when it expires: this category's demand history grows every time an RFQ closes.
29
Open solicitations
29
Closing within 7 days
2,025
Total open quantity
82
Tracked all-time (53 closed)
Open parts
3439-00-407-0676
SOLDERING IRON,ELECTRIC
Open · closes in 7d 33 units
1 solicitation (1 open · 0 closed)
3439-01-130-9398
WELDING POWDER,METALLIC OVERLAY
Open · closes in 7d 50 units
1 solicitation (1 open · 0 closed)
3439-01-420-2775
SOLDER,LEAD-TIN ALLOY
Open · closes in 7d 43 units
1 solicitation (1 open · 0 closed)
3439-01-445-0899
SOLDERING-DESOLDERING STATION
Open · closes in 7d 6 units
1 solicitation (1 open · 0 closed)
3439-01-383-1890
HEAT SINK,SOLDERING AID
Open · closes in 7d 25 units
1 solicitation (1 open · 0 closed)
3439-01-696-2339
CLEANER,WELDING AND CUTTING TIP
Open · closes in 7d 1 units
2 solicitations (1 open · 1 closed)
3439-00-191-3250
BRAZING ALLOY,COPPER
Open · closes in 7d 66 units
1 solicitation (1 open · 0 closed)
3439-00-497-7560
ELECTRODE,WELDING
Open · closes in 7d 265 units
2 solicitations (1 open · 1 closed)
3439-01-283-8780
SOLDER,TIN ALLOY
Closed · last Sep 4, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-679-4815
WELDING QUALIFICATION TEST KIT
Closed · last Sep 3, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-479-0827
WELDING POWDER,METALLIC OVERLAY
Closed · last Aug 31, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-537-8141
ELECTRODE,WELDING
Closed · last Aug 31, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-436-9799
HEATING UNIT,INFRARED
Closed · last Aug 28, 2026 — units
2 solicitations (0 open · 2 closed)
3439-00-542-0949
SOLDER,TIN ALLOY
Closed · last Aug 28, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-473-2000
SOLDER,TIN ALLOY
Closed · last Aug 25, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-018-1655
FLUX,SOLDERING
Closed · last Aug 24, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-653-6827
DESOLDERING WICK
Closed · last Aug 24, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-415-2258
SOLDER,PASTE
Closed · last Aug 24, 2026 — units
3 solicitations (0 open · 3 closed)
3439-00-201-3866
SOLDER,TIN ALLOY
Closed · last Aug 24, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-918-7918
TWEEZERS,ANTI-WICKING
Closed · last Aug 21, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-679-7019
WELDING QUALIFICATION TEST KIT
Closed · last Aug 20, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-380-6737
WELDING POWDER,METALLIC OVERLAY
Closed · last Aug 20, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-965-0090
SOLDERING IRON,ELECTRIC
Closed · last Aug 20, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-378-7161
TIP,ELECTRIC SOLDERING IRON
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-397-1285
SOLDERING IRON,GAS
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-878-2882
ELECTRODE,WELDING
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-039-3494
ELECTRODE,WELDING
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-399-4904
TIP,SUCTION DEVICE,DESOLDERING
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-508-5924
SPECTRUM CASE
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-371-1588
DESOLDERING BRAID
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-653-2189
SOLDERING IRON,ELECTRIC
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-666-3204
ELECTRODE,WELDING
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-224-3577
SOLDER,LEAD ALLOY
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-587-2412
ELECTRODE,WELDING
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-803-9497
ELECTRODE,WELDING
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-165-4186
ELECTRODE,WELDING
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-390-9555
HOLDER,SOLDER AND WICK
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-376-8025
TIP,ELECTRIC SOLDERING IRON
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-354-3448
SOLDERING IRON,ELECTRIC
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-576-6864
SOLDERING STATION
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-666-4749
ELECTRODE,WELDING
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-165-4167
ELECTRODE,WELDING
Closed · last Aug 17, 2026 — units
2 solicitations (0 open · 2 closed)
3439-01-510-5302
SOLDER,TIN ALLOY
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-459-2000
FLUX,SOLDERING
Closed · last Aug 17, 2026 — units
1 solicitation (0 open · 1 closed)
3439-01-407-5369
WELDING POWDER,METALLIC OVERLAY
Closed · last Aug 13, 2026 — units
1 solicitation (0 open · 1 closed)
3439-00-105-9947
ELECTRODE,WELDING
Closed · last Aug 6, 2026 — units
1 solicitation (0 open · 1 closed)