# NSN 6665-01-424-0498: Detector, Hydrogen Sulfide

NSN 6665-01-424-0498 (also written 6665014240498; NIIN 01-424-0498) is a detector, hydrogen sulfide in Federal Supply Class 6665, Hazard-Detecting Instruments and Apparatus. 4 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 6665-01-424-0498 (6665014240498)
- NIIN: 01-424-0498 (014240498)
- Item name: DETECTOR,HYDROGEN SULFIDE
- Federal Supply Class: [FSC 6665 Hazard-Detecting Instruments and Apparatus](https://nsnexplorer.com/fsc/6665/)
- Federal Supply Group: [FSG 66](https://nsnexplorer.com/group/66/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABFF | FURNISHED ITEMS | CABLE |
| AGAV | END ITEM IDENTIFICATION | NIOMITZ CLASS CVN |
| FEAT | SPECIAL FEATURES | HYDROGEN SULFIDE GAS,AC POWER; AC ALARM SIGNALS |
| MATT | MATERIAL | CASE STEEL CORROSION RESISTING |
| PRPY | PROPRIETARY CHARACTERISTICS | PACS |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| MODEL 1400 | 66647 | SIERRA MONITOR CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MODEL 1400 | 8B9P7 | MSA SAFETY SALES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| N-18001 | 66647 | SIERRA MONITOR CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| N-18001 | 8B9P7 | MSA SAFETY SALES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-21 | [SPE7M026V5688](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6665014240498) | DETECTOR, HYDROGEN S | — | $166,883.70 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6665014240498&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6665014240498
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/6665-01-424-0498/
JSON: https://nsnexplorer.com/api/nsn/6665-01-424-0498.json