The Nozzle,welding, cataloged under National Stock Number 3431-01-562-1255, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Arc Machines, Inc. Dba a M I. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-01-562-1255 |
| Primary Part Number | 42150758-02 |
| Item Name | Nozzle,welding |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Arc Machines, Inc. Dba a M I |
| Status | ACTIVE |
| Style Designator | STRAIGHT CONICAL |
| Welding Process for Which Designed | GAS TUNGSTEN ARC |
| Material | STEEL CORROSION RESISTING |
| Orifice Diameter | 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN |
| Mounting End Diameter | 0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM 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 |
|---|---|
| 42150758-02 PRIMARY | Arc Machines, Inc. Dba a M I (USA) |
| Reference | Meaning |
|---|---|
| 42150758 | D/9 Drawing number reference only Arc Machines, Inc. Dba a M I |
NSN 3431-01-562-1255 is a Nozzle,welding, manufactured by Arc Machines, Inc. Dba a M I, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-562-1255 has 1 manufacturer part number on file: 42150758-02 (Arc Machines, Inc. Dba a M I).
Key specifications for 42150758-02: Style Designator: STRAIGHT CONICAL; Overall Length: 1.703 INCHES NOMINAL IN; Welding Process for Which Designed: GAS TUNGSTEN ARC; Part Name Assigned by Controlling Agency: NOZZEL EXTENSION,WIRE 1.703L. 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.