FSC: 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
FSG: 34 — Metalworking Machinery (continued)
General Description
The Flux,brazing, cataloged under National Stock Number 3439-00-262-1857, is classified within Federal Supply Class 3439 (Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories) of the Metalworking Machinery (continued) group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3439-00-262-1857
Item Name
Flux,brazing
FSC / FSG
3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
Status
ACTIVE
Material for Which Formulated
SILVER
Content Within Each Unit Package
8 OZ OZ
Physical Form
PASTE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3439-00-640-3713POSSIBLE MATCH
FLUX,BRAZING
Possible match (shared part number)
3439-00-913-4750POSSIBLE MATCH
FLUX,BRAZING
Possible match (shared part number)
3439-00-914-8390POSSIBLE MATCH
FLUX,BRAZING
Possible match (shared part number)
3439-00-943-8889POSSIBLE MATCH
FLUX,BRAZING
Possible match (shared part number)
3439-00-996-7176POSSIBLE MATCH
FLUX,BRAZING
Possible match (shared part number)
3439-01-067-2084POSSIBLE MATCH
FLUX,BRAZING
Possible match (shared part number)
3439-01-267-0608POSSIBLE MATCH
FLUX,BRAZING
Possible match (shared part number)
3439-01-435-9491POSSIBLE MATCH
FLUX,BRAZING
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
O-F-499
4/1Identification reference
U.S. Government activity
Related Parts
3439-00-640-3713POSSIBLE MATCH
FLUX,BRAZING
3439-00-913-4750POSSIBLE MATCH
FLUX,BRAZING
3439-00-914-8390POSSIBLE MATCH
FLUX,BRAZING
3439-00-943-8889POSSIBLE MATCH
FLUX,BRAZING
3439-00-996-7176POSSIBLE MATCH
FLUX,BRAZING
3439-01-067-2084POSSIBLE MATCH
FLUX,BRAZING
3439-01-267-0608POSSIBLE MATCH
FLUX,BRAZING
3439-01-435-9491POSSIBLE MATCH
FLUX,BRAZING
Frequently Asked Questions
What is NSN 3439-00-262-1857?
NSN 3439-00-262-1857 is a Flux,brazing, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
What NSN replaces 3439-00-262-1857?
8 possible matches (shared part number, not a government interchangeability claim): 3439-00-640-3713, 3439-00-913-4750, 3439-00-914-8390. Verify interchangeability with system specifications before substitution.
What are the specifications of 3439-00-262-1857?
Key specifications for 3439-00-262-1857: Material for Which Formulated: SILVER; Content Within Each Unit Package: 8 OZ OZ; Physical Form: PASTE. 3 specifications are documented in the U.S. Government catalog.
Is NSN 3439-00-262-1857 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.