The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-478-7552, 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2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3439-01-478-7552 |
| 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 | STEEL AND MOLYBDENUM AND IRON AND ALUMINUM BASIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| POWCVC | 5/1 Secondary reference Dla Aviation Engineering Div Department of Defense |
| METCO 449P | 3/1 Design control — primary reference Oerlikon Metco Us Inc |
NSN 3439-01-478-7552 is a Welding Powder,metallic Overlay, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3439-01-478-7557. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-01-478-7552: Content Within Each Unit Package: 5.0LBS LBS; Special Features: NSN IS USED TO PURCHASE A MINIMUM OF 20CONTAINRS TO A MAXIMUM OF 59 CONTAINERS;FE 3AL MO 3C 0.1B,CLAD;-125+45 UM (-120+325 MESH);RC 35-40 HARDNESS;TEXTURE/FINISH AS-SPRAYED 100-900,GROUND 10-30;COATING NUMBERS T449-10 AND P449-10;HIGH CARBON STEEL,HIGH CARBON IRON,MOLYBDENUM,ALUMINUM COMPOSITE.USE IN APPLICATIONS REQUIRING A GRIND FINISH STEEL WHERE YOU NEED EXCELLENT WEAR RESISTANCE EQUAL TO HIGH CHROME STAINLESS STEEL COATINGS AND BETTER THAN HIGH CARBON STEEL COATINGS.GROUND FINISHES ARE EQUIVALENT TO HIGH CARBON STEEL COATINGS.IDENTICAL TO METCO 449 EXCEPT WITH A FINER SIZE CUT.EXCELLENT ADHESIVE WEAR RESISTANCE AGAINST CAST IRON DUE TO LOW COEFFICIENT OF FRICTION; Material: STEEL AND MOLYBDENUM AND IRON AND ALUMINUM 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.