The Spectacles,industrial, cataloged under National Stock Number 4240-01-079-2830, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-079-2830 |
| Item Name | Spectacles,industrial |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| Over Other Spectacles Usage Design | NOT INCLUDED |
| Ventilation Feature | NOT INCLUDED |
| Plastic Front Color | SMOKE |
| Lens Type | FILTER |
| Temple Section Style Designator | RIDING CABLE |
| Nose Shield | NOT INCLUDED |
| Bridge Cover | NOT INCLUDED |
| Diopter Curve Lens | NOT INCLUDED |
| Lens Style | S-7 |
| Temple Core | NOT INCLUDED |
| Headband | NOT PROVIDED |
| Color | GREEN, EXTRA DARK |
| Lens Shape | STANDARD |
| Carrying Case | NOT PROVIDED |
| Front Style Designator | SADDLE BRIDGE WITH RIGID NOSE PADS |
| Side Shield | INCLUDED |
| Material | PLASTIC RIM |
| Material | PLASTIC BRIDGE |
| Material | GLASS SAFETY LENS |
| Material | PLASTIC TEMPLE SECTION |
| Major Diameter | 46.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| F9946 SMSG EXTRADARK GREEN 2.5 | 3/9 Design control — primary reference U.S. Government activity |
| F9946 SMSG | 5/9 Secondary reference U.S. Government activity |
NSN 4240-01-079-2830 is a Spectacles,industrial, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4240-01-079-8807. Verify interchangeability with system specifications before substitution.
Key specifications for 4240-01-079-2830: Over Other Spectacles Usage Design: NOT INCLUDED; Ventilation Feature: NOT INCLUDED; Plastic Front Color: SMOKE; Lens Type: FILTER. 21 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.