The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-478-7780, 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2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-01-478-7780 |
| 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 | IRON AND ALUMINUM AND NICKEL BASIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| METCO 452 | 3/1 Design control — primary reference Oerlikon Metco Us Inc |
| POWCVC | 5/1 Secondary reference Dla Aviation Engineering Div Department of Defense |
NSN 3439-01-478-7780 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): 3439-01-478-7784, 3439-01-478-7788. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-01-478-7780: 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;FE 38NI 10AL,CLAD;-125+45 UM (-120 MESH +325 MESH);RB 80 +5 HARDNESS;TEXTURE/FINISH AS-SPRAYED 400-800,MACHINED 20-40;COATING NUMBERS P542-10 AND T452-10;SELF-BONDING NICKEL-IRON ALUMINUM COMPOSITE.PRODUCES COATINGS WHICH NOT ONLY HAVE THE EXCELLENT SELF-BONDING PROPERTIES OF METCO 450 BUT ALSO PROVIDE A SIGNIFICANT IMPROVEMENT IN MACHINABILITY,WEAR AND OZIDATION RESISTANCE.COATINGS ARE DENSE AND CAN BE USED FOR OXIDATION RESISTANT APPLICATIONS UP TO 1500DEG (F).A GOOD UNDERCOAT FOR CERAMIC,NICKEL CHROMIUM AND STAINLESS STEEL TYPE COATINGS IN THIS ENVIRONMENT; Material: IRON AND ALUMINUM AND NICKEL BASIC. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.