The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-478-7525, 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2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3439-01-478-7525 |
| 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 | 5.0LBS LBS |
| Material | COPPER AND COPPER ALLOY AND ALUMINUM AND STEEL CORROSION RESISTING BASIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| METCO 445 | 3/1 Design control — primary reference Oerlikon Metco Us Inc |
| POWCVC | 5/1 Secondary reference Dla Aviation Engineering Div Department of Defense |
NSN 3439-01-478-7525 is a Welding Powder,metallic Overlay, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3439-01-478-7527, 3439-01-478-7530. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-01-478-7525: Content Within Each Unit Package: 5.0LBS LBS; Special Features: NSN IS USED TO PURCHASE A MINIMUM OF 1 CONTAINER TO A MAXIMUM OF 19 CONTAINERS;CU 10AL,ALUMINUM BRONZE, CLAD;-106+45 UM (-140+325 MESH);RB 55 HARDNESS;CERTIFICATION FP 5045 TYPE XVII,MIL 1687 AND MSRR 9507/38;TEXTURE/FINISH AS-SPRAYED 500-550,MACHINED 25;COATING NUMBERS P445-10 AND T445-10;3500PSI BOND STRENGTH;SELF-BONDING ALUMINUM BRONZE, COPPER-ALUMINUM COMPOSITE.USE IN APPLICATIONS REQUIRING ALUMINUM-BRONZE TYPE COATINGS WITH GOOD WEAR RESISTANCE.ABRASIVE WEAR IS 2-3 TIMES BETTER THAN COMBUSTION SPRAYED ALUMINUM BRONZE COATINGS AND 1-2 TIMES BETTER THAN ARC SPRAYED COATINGS.RECOMMENDED FOR SALVAGE AND BUILD-UP APPLICATIONS ON COPPER ALLOY SUBSTRATES.NO BUILD-UP THICKNESS LIMITATION.RECOMMENDED TO BOND CERAMICS AND TUNGSTEN CARBIDES TO COPPER BASED ALLOYS; Material: COPPER AND COPPER ALLOY AND ALUMINUM AND STEEL CORROSION RESISTING BASIC. 2 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
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.