PartsTable TECHNICAL DATA SHEET

NSN 3439-00-188-6983Government record, cited

Brazing Alloy, Copper3439-00-188-6983

NSN 3439-00-188-6983 · NIIN 001886983

FSC 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories · FSG 34 — Metalworking Machinery (continued)

Government record, cited

Also searched as 3439-00-188-6983 · 3439001886983 · NIIN 001886983 · 00-188-6983 · FSC 3439 Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories

Nearby stock numbers ← 3439-00-188-4080 · 3439-00-188-6984 Brazing Alloy, Copper →

Features

Brazing Alloy,copper — FSC 3439
Flux Feature: NOT INCLUDED
Nondefinitive Spec/std Data: A CLASS
Content Within Each Unit Package: 1 LB LBS
Physical Form: GRANULAR
Granule Size: COARSE LONG
Chemical Composition Percentage: COPPER 49-52,LEAD 0.50,IRON 0.10,ZINC REMAINDER

Identification

NSN: 3439-00-188-6983
NIIN: 001886983
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 3439-00-188-6983, 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6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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	3439-00-188-6983
Item Name	Brazing Alloy,copper
FSC / FSG	3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
Status	ACTIVE
Flux Feature	NOT INCLUDED
Nondefinitive Spec/std Data	A CLASS
Content Within Each Unit Package	1 LB LBS
Physical Form	GRANULAR
Granule Size	COARSE LONG
Chemical Composition Percentage	COPPER 49-52,LEAD 0.50,IRON 0.10,ZINC REMAINDER

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 Items 9

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

3439-00-204-2555 POSSIBLE MATCH

BRAZING ALLOY,COPPER

Possible match (shared part number)

3439-00-224-3580AWSA5.8-92 BCUP-5 POSSIBLE MATCH

BRAZING ALLOY,SILVER

Possible match (shared part number)American Welding Society, Inc.

3439-00-262-4174 POSSIBLE MATCH

BRAZING ALLOY,COPPER

Possible match (shared part number)

3439-00-262-4203 POSSIBLE MATCH

BRAZING ALLOY,COPPER

Possible match (shared part number)

3439-00-262-4210AWSA5.8-92 BCUP-2-0.063 POSSIBLE MATCH

BRAZING ALLOY,COPPER

Possible match (shared part number)American Welding Society, Inc.

3439-00-262-4211AWSA5.8-92 POSSIBLE MATCH

BRAZING ALLOY,COPPER

Possible match (shared part number)American Welding Society, Inc.

3439-00-262-4212AWSA5.8-92 BCUP-2-0.125 POSSIBLE MATCH

BRAZING ALLOY,COPPER

Possible match (shared part number)American Welding Society, Inc.

3439-00-411-2338 POSSIBLE MATCH

BRAZING ALLOY,SILVER

Possible match (shared part number)

3439-01-268-0532AWSA5.8-92 BCUP-3 POSSIBLE 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	4/1 Identification reference U.S. Government activity

Related Parts

3439-00-204-2555POSSIBLE MATCH

BRAZING ALLOY,COPPER

3439-00-224-3580POSSIBLE MATCH

BRAZING ALLOY,SILVER

AWSA5.8-92 BCUP-5

3439-00-262-4174POSSIBLE MATCH

BRAZING ALLOY,COPPER

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 3439-00-188-6983?

NSN 3439-00-188-6983 is a Brazing Alloy,copper, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.

What NSN replaces 3439-00-188-6983?

9 possible matches (shared part number, not a government interchangeability claim): 3439-00-204-2555, 3439-00-224-3580, 3439-00-262-4174. Verify interchangeability with system specifications before substitution.

What are the specifications of 3439-00-188-6983?

Key specifications for 3439-00-188-6983: Flux Feature: NOT INCLUDED; Nondefinitive Spec/std Data: A CLASS; Content Within Each Unit Package: 1 LB LBS; Physical Form: GRANULAR. 6 specifications are documented in the U.S. Government catalog.

Is NSN 3439-00-188-6983 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.

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