The Welding Machine,inverter Type, cataloged under National Stock Number 3431-01-388-7644, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Lincoln Electric Holdings Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-01-388-7644 |
| Primary Part Number | K1728-2 |
| Item Name | Welding Machine,inverter Type |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Lincoln Electric Holdings Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 300 AMPS AT 32 VOLTS AT 60DUTY CYCLE; CURRENT RANGE 15-300 AMPS; HEIGHT 18.7 IN.; WIDTH 10.8 IN.; DEPTH 22.2 IN.; WEIGHT 64 POUNDS; OPERATES ON SINGLE PHASE OR THREE PHASE INPUT POWER; MODEL INVERTEC V 300-PRO CV/CC POWER SOURCE LBS |
| 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 |
|---|---|
| K1728-2 PRIMARY | Lincoln Electric Holdings Inc (USA) |
| Reference | Meaning |
|---|---|
| K-1349-3 | 5/9 Secondary reference Lincoln Electric Holdings Inc |
| WELDCVC | 5/1 Secondary reference Dla Aviation Engineering Div Department of Defense |
NSN 3431-01-388-7644 is a Welding Machine,inverter Type, manufactured by Lincoln Electric Holdings Inc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-388-7644 has 1 manufacturer part number on file: K1728-2 (Lincoln Electric Holdings Inc).
Key specifications for K1728-2: General Characteristics Item Description: 300 AMPS AT 32 VOLTS AT 60DUTY CYCLE; CURRENT RANGE 15-300 AMPS; HEIGHT 18.7 IN.; WIDTH 10.8 IN.; DEPTH 22.2 IN.; WEIGHT 64 POUNDS; OPERATES ON SINGLE PHASE OR THREE PHASE INPUT POWER; MODEL INVERTEC V 300-PRO CV/CC POWER SOURCE LBS; Special Features: THREE POSITION SWITCH FOR CONSTANT CURRENT MODES; DIGITAL METER READS VOLTS OR AMPS; QUICK DISCONNECT STYLE OUTPUT TERMINALS FOR MAXIMUM PORTABILITY; THERMOSTAT PREVENTS OVERHEATING AND EXTENDS WELDER LIFE; LOW NOISE LEVEL WHEN WELDING; BUILTD-IN LINE VOLTAGE COMPENSATION HOLDS THE OUTPUT STEADY TO MAINTAIN WELD CONSISTENCY; INCLUDES 10 FOOTD POWER CORD; STANDARD AUXILIARY POWER FOR A WIRE FEEDER. 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.