# NSN 6550-01-723-3649: Test Kit, Bacteria Determination

NSN 6550-01-723-3649 (also written 6550017233649; NIIN 01-723-3649) is a test kit, bacteria determination in Federal Supply Class 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 6550-01-723-3649 (6550017233649)
- NIIN: 01-723-3649 (017233649)
- Item name: TEST KIT,BACTERIA DETERMINATION
- 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 |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | SINGLE USE, SELF-CONTAINED TEST WITH SELECTIVE MEDIUM DESIGNED TO DETECT COLIFORM, E. COLI, AND HYDROGEN SULFIDE PRODUCING ENTEROBACTERIACEAE (E.G., SALMONELLA, CITROBACTER) IN FOOD, BEVERAGES, AND WATERS. CONTAINS A SPECIAL "GELLING" AGENT THAT ALLOWS QUANTITATION OF COLONY FORMING UNITS AS WELL AS PRESENCE/ABSENCE DETERMINATION. DETECTS 1CFU/100ML IN WATER AND 1CFU/3ML IN JUICE; SHOWS RESULTS IN 28 HOURS; PACKAGE CONTAINS 25 TESTS. |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | PATHOGEL TEST, 25S |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1674190 | 89875 | DEFENSE LOGISTICS AGENCY DIRECTORATE OF MEDICAL MATERIEL DEFENSE SUPPLY CENTER PHILADELPHIA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6550NCM249830 | 64616 | DEFENSE MEDICAL STANDARDIZATION BOARD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| PATH-25K | 0ADJ4 | CHARM SCIENCES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-23 | $281.09 | 4 | CHARM SCIENCES INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) |
| 2026-10-21 | $281.09 | 4 | CHARM SCIENCES INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) |
| 2026-10-13 | $312.53 | 5 | CHARM SCIENCES INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) |
| 2026-09-17 | $326.03 | 1 | CHARM SCIENCES INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) |
| 2026-09-15 | $320.50 | 1 | CHARM SCIENCES INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-23 | [SPE2DS27V0751](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) | TEST KIT, BACTERIA DETERMINATION | CHARM SCIENCES INC | $1,124.36 |
| 2026-10-21 | [SPE2DS27V0693](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) | TEST KIT, BACTERIA DETERMINATION | CHARM SCIENCES INC | $1,124.36 |
| 2026-10-13 | [SPE2DS27P0139](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) | TEST KIT, BACTERIA DETERMINATION | CHARM SCIENCES INC | $1,562.65 |
| 2026-09-17 | [SPE2DS26V000E](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) | TEST KIT, BACTERIA DETERMINATION | CHARM SCIENCES INC | $326.03 |
| 2026-09-15 | [SPE2DS26V9874](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) | TEST KIT, BACTERIA DETERMINATION | CHARM SCIENCES INC | $320.50 |
| 2026-08-10 | [SPE2DS26V8653](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649) | TEST KIT, BACTERIA DETERMINATION | CHARM SCIENCES INC | $327.72 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6550017233649&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550017233649
- 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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