# NSN 6550-01-571-4135: Reagent Set, Chloride Determinati

NSN 6550-01-571-4135 (also written 6550015714135; NIIN 01-571-4135) is a reagent set, chloride determinati in Federal Supply Class 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. 4 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 6550-01-571-4135 (6550015714135)
- NIIN: 01-571-4135 (015714135)
- Item name: REAGENT SET,CHLORIDE DETERMINATI
- Federal Supply Class: [FSC 6550 In Vitro Diagnostic Substances, Reagents, Test Kits and Sets](https://nsnexplorer.com/fsc/6550/)
- Federal Supply Group: [FSG 65](https://nsnexplorer.com/group/65/)
- Acquisition method suffix code: AMSC Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SILVER NITRATE CHLORIDE REAGENT SET 20000MG/L AS CL - |
| FEAT | SPECIAL FEATURES | FOR DETERMINATION OF CHLORIDE BY DIGITAL TITRATOR METHOD (SILVER NITRATE METHOD); RANGE: 10-10,000 MG/L AS CL 1-; INCLUDES: (2) INDICATOR POWDER PILLOWS, (1) SILVER NITRATE TITRATION CARTRIDGE 0.2256 N, AND (1) SILVER NITRATE TITRATION CARTRIDGE 1.128 N; APPROXIMATELY 40 TO 100 TESTS PER RANGE; HAZARDOUS; STORE AT ROOM TEMPERATURE 10 TO 30 DEG C |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 22880-00 | 91224 | HACH COMPANY DBA HACH CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 26684 | 89875 | DEFENSE LOGISTICS AGENCY DIRECTORATE OF MEDICAL MATERIEL DEFENSE SUPPLY CENTER PHILADELPHIA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6550NCM116652 | 64616 | DEFENSE MEDICAL STANDARDIZATION BOARD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HAC22880-00 | Z4053 | THERMO FISHER SCIENTIFIC PTY LTD THERMO FISHER SCIENTIFIC AUSTRALIA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-29 | [SPE2DS26V020E](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550015714135) | REAGENT SET, CHLORID | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | $552.00 |
| 2026-09-29 | [SPE2DS26V021N](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550015714135) | REAGENT SET, CHLORID | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | $693.30 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6550015714135&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550015714135
- 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.

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