The Helmet,welder's, cataloged under National Stock Number 4240-01-668-2196, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Airgas Usa, Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-668-2196 |
| Primary Part Number | MIL255519 |
| Item Name | Helmet,welder's |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Airgas Usa, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MIL255519 | Airgas Usa, Llc (USA) |
| 287794 | Miller Electric Mfg. Llc (USA) |
| Reference | Meaning |
|---|---|
| 260938 | 5/9 Secondary reference Miller Electric Mfg. Llc |
| 255519 | 5/9 Secondary reference Miller Electric Mfg. Co. |
| 260938 | 3/9 Design control — primary reference Miller Electric Mfg. Co. |
NSN 4240-01-668-2196 is a Helmet,welder's, manufactured by Airgas Usa, Llc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-668-2196 has 2 manufacturer part numbers on file: MIL255519 (Airgas Usa, Llc), 287794 (Miller Electric Mfg. Llc).
Key specifications for MIL255519: Part Name Assigned by Controlling Agency: WELDING HELMET, TITANIUM SERIES. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.