The Nozzle,welding, cataloged under National Stock Number 3431-01-646-9033, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Airgas - North Central, Inc. Dba Airgas. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-01-646-9033 |
| Primary Part Number | BERNS-5818C |
| Item Name | Nozzle,welding |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Airgas - North Central, Inc. Dba Airgas |
| Status | ACTIVE |
| Material | COPPER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| NS-5818C | Bernard Welding (USA) |
| BERNS-5818C PRIMARY | Airgas - North Central, Inc. Dba Airgas (USA) |
| Reference | Meaning |
|---|---|
| RIA155983-2 | 7/2 Vendor item drawing reference Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| RIA155983 | D/9 Drawing number reference only Army, United States Department of the Dba Rock Island Arsenal Jmtc |
NSN 3431-01-646-9033 is a Nozzle,welding, manufactured by Airgas - North Central, Inc. Dba Airgas, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-646-9033 has 2 manufacturer part numbers on file: NS-5818C (Bernard Welding), BERNS-5818C (Airgas - North Central, Inc. Dba Airgas).
Key specifications for BERNS-5818C: Special Features: 5/8" INSIDE DIAMETER; Part Name Assigned by Controlling Agency: MIG GUN NOZZLE; End Item Identification: 4940-01-496-1038; Material: COPPER. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.