Chemical Composition Percentage: COPPER 72; ZINC 27.6; IRON 0.1
Identification
NSN: 3439-00-262-4174
NIIN: 002624174
FSC: 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
FSG: 34 — Metalworking Machinery (continued)
General Description
The Brazing Alloy,copper, cataloged under National Stock Number 3439-00-262-4174, 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 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
3439-00-262-4174
Item Name
Brazing Alloy,copper
FSC / FSG
3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
Status
ACTIVE
Flux Feature
NOT INCLUDED
Length
36.000 INCHES NOMINAL IN
Diameter
0.125 INCHES NOMINAL IN
Nondefinitive Spec/std Data
C CLASS AND ROD FORM
Physical Form
ROD
Chemical Composition Percentage
COPPER 72; ZINC 27.6; IRON 0.1
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3439-00-262-4203POSSIBLE MATCH
BRAZING ALLOY,COPPER
Possible match (shared part number)
3439-00-262-4210AWSA5.8-92 BCUP-2-0.063POSSIBLE MATCH
BRAZING ALLOY,COPPER
Possible match (shared part number)American Welding Society, Inc.
3439-00-262-4211AWSA5.8-92POSSIBLE MATCH
BRAZING ALLOY,COPPER
Possible match (shared part number)American Welding Society, Inc.
3439-00-262-4212AWSA5.8-92 BCUP-2-0.125POSSIBLE MATCH
BRAZING ALLOY,COPPER
Possible match (shared part number)American Welding Society, Inc.
3439-00-411-2338POSSIBLE MATCH
BRAZING ALLOY,SILVER
Possible match (shared part number)
3439-01-268-0532AWSA5.8-92 BCUP-3POSSIBLE MATCH
BRAZING ALLOY,SILVER
Possible match (shared part number)American Welding Society, Inc.
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
QQB650
4/1Identification reference
U.S. Government activity
Related Parts
3439-00-262-4203POSSIBLE MATCH
BRAZING ALLOY,COPPER
3439-00-262-4210POSSIBLE MATCH
BRAZING ALLOY,COPPER
AWSA5.8-92 BCUP-2-0.063
3439-00-262-4211POSSIBLE MATCH
BRAZING ALLOY,COPPER
AWSA5.8-92
3439-00-262-4212POSSIBLE MATCH
BRAZING ALLOY,COPPER
AWSA5.8-92 BCUP-2-0.125
3439-00-411-2338POSSIBLE MATCH
BRAZING ALLOY,SILVER
3439-01-268-0532POSSIBLE MATCH
BRAZING ALLOY,SILVER
AWSA5.8-92 BCUP-3
Frequently Asked Questions
What is NSN 3439-00-262-4174?
NSN 3439-00-262-4174 is a Brazing Alloy,copper, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
What NSN replaces 3439-00-262-4174?
6 possible matches (shared part number, not a government interchangeability claim): 3439-00-262-4203, 3439-00-262-4210, 3439-00-262-4211. Verify interchangeability with system specifications before substitution.
What are the specifications of 3439-00-262-4174?
Key specifications for 3439-00-262-4174: Flux Feature: NOT INCLUDED; Length: 36.000 INCHES NOMINAL IN; Diameter: 0.125 INCHES NOMINAL IN; Nondefinitive Spec/std Data: C CLASS AND ROD FORM. 6 specifications are documented in the U.S. Government catalog.
Is NSN 3439-00-262-4174 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.