The Indicator,carbon Monoxide, cataloged under National Stock Number 6665-01-646-9620, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Msa Safety Sales, Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Indicator,carbon Monoxide |
| FSC / FSG | 6665 — Hazard-detecting Instruments and Apparatus (FSG 66) |
| Manufacturers | Msa International (CAGE 3GXH8); Msa Safety Sales, Llc (CAGE 8B9P7) |
| Parameter | Value |
|---|---|
| NSN | 6665-01-646-9620 |
| Primary Part Number | DSK-3053-147 |
| Item Name | Indicator,carbon Monoxide |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Manufacturer | Msa Safety Sales, 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 |
|---|---|
| DSK 3053-147 REV.6 | Msa International (USA) |
| DSK-3053-147 PRIMARY | Msa Safety Sales, Llc (USA) |
| Reference | Meaning |
|---|---|
| DSK-3053-147 | 5/9 Secondary reference Jsr, Inc. |
NSN 6665-01-646-9620 is a Indicator,carbon Monoxide, manufactured by Msa Safety Sales, Llc, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-646-9620 has 2 manufacturer part numbers on file: DSK 3053-147 REV.6 (Msa International), DSK-3053-147 (Msa Safety Sales, Llc).
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.