The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-478-7494, 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2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3439-01-478-7494 |
| 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 | NICKEL ALLOY AND MOLYBDENUM 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 442 | 3/1 Design control — primary reference Oerlikon Metco Us Inc |
| POWCVC | 5/1 Secondary reference Dla Aviation Engineering Div Department of Defense |
NSN 3439-01-478-7494 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): 3439-01-478-7513. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-01-478-7494: 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;NI 8.5CR 7AL 5MO 2SI 2B 2FE 3TIO,CLAD;-125+45 UM (-120+325 MESH);CERTIFICATION FP 5045 TYPE XXIII;RC 30 HARDNESS;TEXTURE/FINISH AS-SPRAYED 400-600,GROUND 10-20;COATING NUMBERS T442-10,T442-12,P442-10 AND P442-12;5000PSI BONS STRENGTH;SELF-BONDING STAINLESS EQUIVALENT NICKEL-CHROMIUM,MOLYBDENUM,ALUMINUM COMPOSITE.USE COATINGS WHERE YOU WANT A GRIND FINISH STAINLESS STEEL TYPE COATING WITH EXCELLENT WEAR RESISTANCE EQUAL TO HIGH CHROME STAINLESS STEEL COATINGS AND BETTER THAN HIGH CARBON STEEL COATINGS.CORROSION RESISTANCE EQUAL TO HIGH CHROME STAINLESS STEEL.EXCELLENT FRETTING WEAR FOR USE ON BALL BEARING SEAT AND IMPELLER FIT AREAS.PROVIDES A SMOOTH,HARD SURFACE FOR RESTORING SHAFT JOURNALS RUNNING AGAINST SOFT BEARING MATERIALS OF BABBITT OR BRONZE; Material: NICKEL ALLOY AND MOLYBDENUM 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.