The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-478-7571, 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2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-01-478-7571 |
| 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 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 451 | 3/1 Design control — primary reference Oerlikon Metco Us Inc |
NSN 3439-01-478-7571 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): 3439-01-478-7573, 3439-01-478-7576. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-01-478-7571: 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;NI 9.5CR 2.5SI 1.5B 0.5AL,BLEND;-106+22 UM (-140+22 UM);RC 23-33 HARDNESS;TEXTURE/FINISH AS-SPRAYED 500-900C,GROUND 10-30;COATING NUMBERS P451-10,P451-11,T451-10,T451-11 AND T451-12;HIGH NICKEL ALLOY W/A NICKEL-ALUMINUM CONSTITUTENT THAT REACTS EXOTHERMICALLY DURING SPRAYING.PRODUCES HARD,DENSE,SEMI-FUSED COATINGS THAT PROVIDE HARD BEARING SURFACES AND ARE RESISTANT TO WEAR BY ABRASIVE GRAINS,HARD SURFACES,PARTICLE EROSION AND FRETTING.HIGH BOND STRENGTH AND LOW SHRINK PERMIT THICK COATINGS WITHOUT CRACKING.PLASMA FLAME COATINGS HAVE BEST HIGH TEMPREATURE EROSION RESISTANCE OF THE IRON,NICKEL AND COBALT-BASED COATINGS; Material: NICKEL ALLOY 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.