General Characteristics Item Description: 6-1/2 OZ TUBE OZ
Identification
NSN: 3439-01-004-6519
NIIN: 010046519
FSC: 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
FSG: 34 — Metalworking Machinery (continued)
General Description
The Liquid Steel, cataloged under National Stock Number 3439-01-004-6519, 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 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
3439-01-004-6519
Item Name
Liquid Steel
FSC / FSG
3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
Status
ACTIVE
General Characteristics Item Description
6-1/2 OZ TUBE OZ
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Hazardous per DLA record (HMIC Y)
Criticality Code
X
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-305-0057LS1POSSIBLE MATCH
LINING,FRICTION
Possible match (shared part number)American Machinery Inc Dba Amr American Machinery & Re-Mfg. Div Amr-Dod Contracting
5930-01-398-6282POSSIBLE MATCH
SWITCH,SENSITIVE
Possible match (shared part number)
7025-01-623-8972LS1POSSIBLE MATCH
MOUSE,DATA ENTRY
Possible match (shared part number)Logitech Inc
7025-01-627-3418LS1POSSIBLE MATCH
MOUSE,DATA ENTRY
Possible match (shared part number)Logitech Inc.
4940-01-631-0681LS1POSSIBLE MATCH
LEAK DETECTOR,REFRIGERANT GAS
Possible match (shared part number)Cps Products Inc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
LS-1
3/9Design control — primary reference
Loctite Corp Automotive and Consumer Group
Related Parts
3040-01-305-0057POSSIBLE MATCH
LINING,FRICTION
LS1
5930-01-398-6282POSSIBLE MATCH
SWITCH,SENSITIVE
7025-01-623-8972POSSIBLE MATCH
MOUSE,DATA ENTRY
LS1
7025-01-627-3418POSSIBLE MATCH
MOUSE,DATA ENTRY
LS1
4940-01-631-0681POSSIBLE MATCH
LEAK DETECTOR,REFRIGERANT GAS
LS1
Frequently Asked Questions
What is NSN 3439-01-004-6519?
NSN 3439-01-004-6519 is a Liquid Steel, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
What NSN replaces 3439-01-004-6519?
5 possible matches (shared part number, not a government interchangeability claim): 3040-01-305-0057, 5930-01-398-6282, 7025-01-623-8972. Verify interchangeability with system specifications before substitution.
What are the specifications of 3439-01-004-6519?
Key specifications for 3439-01-004-6519: General Characteristics Item Description: 6-1/2 OZ TUBE OZ. 1 specification is documented in the U.S. Government catalog.
Is NSN 3439-01-004-6519 hazardous material?
Hazardous per DLA record (HMIC Y). 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.