The Lens,facepiece,chemical-Biologic, cataloged under National Stock Number 4240-01-449-3106, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-449-3106 |
| Item Name | Lens,facepiece,chemical-Biologic |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| Lens Type | NONCOVER/FILTER |
| Polarization Feature | NOT INCLUDED |
| Diopter Curve | NOT INCLUDED |
| Lens Style | SPECIAL SHAPE |
| Lens Shape | STANDARD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 804871-31 | 3/9 Design control — primary reference Avox Systems Inc Dba Avox Systems Inc |
| 804871-31 | 5/9 Secondary reference Scott Technologies, Inc. |
| 804871-01 | 5/9 Secondary reference Avox Systems Inc Dba Avox Systems Inc |
NSN 4240-01-449-3106 is a Lens,facepiece,chemical-Biologic, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
Key specifications for 4240-01-449-3106: Lens Type: NONCOVER/FILTER; Polarization Feature: NOT INCLUDED; Diopter Curve: NOT INCLUDED; Lens Style: SPECIAL SHAPE. 5 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.