The Nozzle,welding, cataloged under National Stock Number 3431-01-045-7820, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Weldcraft Customer Service. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-01-045-7820 |
| Primary Part Number | 53N28 |
| Item Name | Nozzle,welding |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Weldcraft Customer Service |
| Status | ACTIVE |
| Style Designator | TAPERED |
| Welding Process for Which Designed | INERT GAS TUNGSTEN ARC |
| Material | CERAMIC |
| Orifice Diameter | 0.250 INCHES NOMINAL IN |
| Mounting End Diameter | 0.625 INCHES NOMINAL IN |
| 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 |
|---|---|
| 53N28 PRIMARY | Weldcraft Customer Service (USA) |
| 53N28 PRIMARY | Cni Ceramic Nozzles Inc Dba Cni (USA) |
| 53N28 PRIMARY | Welding Nozzle Intl Inc (USA) |
| Reference | Meaning |
|---|---|
| 53N28 | 3/2 Design control — primary reference U.S. Government activity |
| 53N28 | 5/9 Secondary reference Union Carbide Corp Sub of Dow Co the |
| 53N28 | 5/9 Secondary reference L-Tec Welding and Cutting Systems |
| 53N28 | 5/9 Secondary reference Standard Welders Equipment Corporation |
NSN 3431-01-045-7820 is a Nozzle,welding, manufactured by Weldcraft Customer Service, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-045-7820 has 3 manufacturer part numbers on file: 53N28 (Weldcraft Customer Service), 53N28 (Cni Ceramic Nozzles Inc Dba Cni), 53N28 (Welding Nozzle Intl Inc).
Key specifications for 53N28: Style Designator: TAPERED; Overall Length: 1.125 INCHES NOMINAL IN; Welding Process for Which Designed: INERT GAS TUNGSTEN ARC; Special Features: CUP NO. 4-L. 5 specifications are 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.