The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-478-3307, 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2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-01-478-3307 |
| 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 ALLOY 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 12C | 3/1 Design control — primary reference Oerlikon Metco Us Inc |
NSN 3439-01-478-3307 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): 3439-01-478-3308, 3439-01-478-3311. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-01-478-3307: 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 10CR 2.5B 2.5FE 2.5SI 0.15C,SPHEROIDAL,GAS ATOMIZED;-125 +45 UM (-120 +325 MESH)RC 30-35 HARDNESS;TEXTURE/FINISH AS SPRAYED MEDIUM MACHINE V/GOOD GROUND EXCELLENT;COATING NUMBER T12C-10;NICKEL-CHROMIUM-BORON HARDFACING ALLOY.PRODUCES ESSENTIALLY PORE-FREE,READILY MACHINABLE COATINGS HAVING GOOD WEAR AND CORROSION RESISTANCE, AND NOT SUSCEPTIBLE TO CRACKING ON ANY TYPE OF BASE MATERIALRECOMMENDED FOR RESISTANCE TO WEAR BY ABRASIVE GRAINS,HARD SURFACES,FRETTING,CAVITATION AND EROSION AT BOTH LOW AND HIGH TEMPREATURES TO 1550DEG (F); Material: IRON ALLOY 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.