The Detector,hydrogen Sulfide, cataloged under National Stock Number 6665-01-424-0498, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Detector,hydrogen Sulfide |
| FSC / FSG | 6665 — Hazard-detecting Instruments and Apparatus (FSG 66) |
| Manufacturers | Msa Safety Sales, Llc (CAGE 8B9P7) |
| Parameter | Value |
|---|---|
| NSN | 6665-01-424-0498 |
| Primary Part Number | N-18001 |
| Item Name | Detector,hydrogen Sulfide |
| 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 |
|---|---|
| MODEL 1400 | Msa Safety Sales, Llc (USA) |
| N-18001 PRIMARY | Msa Safety Sales, Llc (USA) |
| Reference | Meaning |
|---|---|
| N-18001 | 5/9 Secondary reference Sierra Monitor Corporation |
| MODEL 1400 | 3/9 Design control — primary reference Sierra Monitor Corporation |
NSN 6665-01-424-0498 is a Detector,hydrogen Sulfide, manufactured by Msa Safety Sales, Llc, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-424-0498 has 2 manufacturer part numbers on file: MODEL 1400 (Msa Safety Sales, Llc), N-18001 (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.