The Cup,high Impact,gas Lens, cataloged under National Stock Number 3439-01-026-5261, is classified within Federal Supply Class 3439 (Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is American Torch Tip Co Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3439-01-026-5261 |
| Primary Part Number | 54N18 |
| Item Name | Cup,high Impact,gas Lens |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Manufacturer | American Torch Tip Co Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CUP NO. 4,1-5/8 IN. LG,29/32 IN. DIA IN |
| 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 |
|---|---|
| 54N18 PRIMARY | American Torch Tip Co Inc (USA) |
| 54N18 | The Esab Group Inc Dba Esab Welding & Cutting Products Div Esab Welding and Cutting (USA) |
| Reference | Meaning |
|---|---|
| 54N18 | 5/9 Secondary reference L-Tec Welding and Cutting Systems |
| 54N18 | 5/9 Secondary reference Union Carbide Corp Sub of Dow Co the |
NSN 3439-01-026-5261 is a Cup,high Impact,gas Lens, manufactured by American Torch Tip Co Inc, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
NSN 3439-01-026-5261 has 2 manufacturer part numbers on file: 54N18 (American Torch Tip Co Inc), 54N18 (The Esab Group Inc Dba Esab Welding & Cutting Products Div Esab Welding and Cutting).
Key specifications for 54N18: General Characteristics Item Description: CUP NO. 4,1-5/8 IN. LG,29/32 IN. DIA IN; End Item Identification: UNION CARBIDE MODEL HW-17 WELDING TORCH. 1 specification is 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.