The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-478-2673, 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2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-01-478-2673 |
| 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 | COBALT AND MOLYBDENUM AND CHROMIUM 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 |
| DIAMALLOY 3002NS | 3/1 Design control — primary reference Oerlikon Metco Us Inc |
NSN 3439-01-478-2673 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): 3439-01-478-2677, 3439-01-478-2682. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-01-478-2673: 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;CO 28MO 8CR 2SI (SIMILAR TO TRIBALOY 400),SPHEROIDAL,GAS ATOMIZED;-45 +5.5 UM (-325 MESH +5.5 UM);PARTICULARLY SUITABLE WHERE LUBRICATION IS LOW OR NON-EXISTENT;COATINGS PERFORM WELL IN REDUCING ENVIRONMENTS SUCH AS HYDROCHLORIC,FORMIC AND SULFURIC ACIDS.OXIDIZING ENVIRONMENTS SUCH AS FERRIC CHLORIDE NON-OXIDIZING ENVIRONMENTS SUCH AS FERRIC CHLORIDE AND NITRIC ACID, AND NON-ENVIRONMENTS SUCH AS PHOSPHORIC ACETIC ACID AND SALT WATER;EXCELLENT SLIDING WEAR RESISTANCE COMBINED WITH GOOD HOT CORROSION RESISTANCE AND MODERATE OXIDATION RESISTANCE AT TEMPREATURES UP TO 1470DEG (F); Material: COBALT AND MOLYBDENUM AND CHROMIUM 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.