FSC: 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
FSG: 34 — Metalworking Machinery (continued)
General Description
The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-477-6978, 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 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
3439-01-477-6978
Item Name
Welding Powder,metallic Overlay
FSC / FSG
3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
Status
ACTIVE
Content Within Each Unit Package
12.5LBS LBS
Material
NICKEL BASIC
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Hazardous per DLA record (HMIC Y)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3439-01-477-6994POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
Possible match (shared part number)
3439-01-477-6997POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
Possible match (shared part number)
3439-01-477-6999POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
Possible match (shared part number)
3439-01-477-7001POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
Possible match (shared part number)
3439-01-477-7003POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
Possible match (shared part number)
3439-01-477-7006POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
PAC140
3/1Design control — primary reference
Powder Alloy Corp
POWCVC
5/1Secondary reference
Dla Aviation Engineering Div Department of Defense
Related Parts
3439-01-477-6994POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
3439-01-477-6997POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
3439-01-477-6999POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
3439-01-477-7001POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
3439-01-477-7003POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
3439-01-477-7006POSSIBLE MATCH
WELDING POWDER,METALLIC OVERLAY
Frequently Asked Questions
What is NSN 3439-01-477-6978?
NSN 3439-01-477-6978 is a Welding Powder,metallic Overlay, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
What NSN replaces 3439-01-477-6978?
6 possible matches (shared part number, not a government interchangeability claim): 3439-01-477-6994, 3439-01-477-6997, 3439-01-477-6999. Verify interchangeability with system specifications before substitution.
What are the specifications of 3439-01-477-6978?
Key specifications for 3439-01-477-6978: Content Within Each Unit Package: 12.5LBS LBS; Special Features: NSN USED TO PURCHASE A MINIMUM OF 1 CONTAINER TO A MAXIMUM OF 2 CONTAINERS;CERTIFICATION PWA 1352-2;NICKEL CLAD CARBON GRAPHITE CORE MATERIAL OVERLAYED WITH NICKEL.CHEMISTRY IS 15% CARBON, 85% NICKEL.USEFUL FOR PRODUCING AIRCEAFT CLEARANCE COATINGS SUITABLE FOR OPERATION TO 900DEG (F); Material: NICKEL BASIC. 2 specifications are documented in the U.S. Government catalog.
Is NSN 3439-01-477-6978 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.