The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-478-2649, 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2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-01-478-2649 |
| 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 | TUNGSTEN CARBIDE AND COBALT 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 2006 | 3/1 Design control — primary reference Oerlikon Metco Us Inc |
NSN 3439-01-478-2649 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): 3439-01-478-2654, 3439-01-478-2658. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-01-478-2649: 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;WC 17CO SPRAY DRIED/SINTERED;-30 +5.5 UM;HIGH TOUGHNESS AND FRETTING RESISTANCE;USED TO PROTECT AGAINST SLIDING WEAR,HAMMER WEAR,ABRASION AND FRETTING.DO NOT USE ABOVE 930DEG (F) OR IN CORROSIVE MEDIA.APPLICATIONS INCLUDE MID-SPAN STIFFENERS (GAS TURBINE BLADES),AIRCRAFT FLAP TRACKS, SUCKER ROD COUPLINGS,EXTRUSION DIES AND EXHAUST FANS; Material: TUNGSTEN CARBIDE AND COBALT 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.