# NSN 6550-01-621-1941: Test Kit, WNV, Sle, And Eee Virus A

NSN 6550-01-621-1941 (also written 6550016211941; NIIN 01-621-1941) is a test kit, wnv, sle, and eee virus a 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: 6550-01-621-1941 (6550016211941)
- NIIN: 01-621-1941 (016211941)
- Item name: TEST KIT,WNV,SLE,AND EEE VIRUS A
- 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: 4

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | ANTIGEN PANEL ASSAY WNV SLE, EEE, 50 TEST STRIPS PER KIT |
| FEAT | SPECIAL FEATURES | VECTORTEST WEST NILE VIRUS (WNV), SAINT LOUIS ENCEPHALITIS (SLE) VIRUS AND EASTERN EQUINE ENCEPHALITIS (EEE) VIRUS ANTIGEN PANEL ASSAY; RAPID DETECTION DIPSTICK TEST; 50 TEST STRIPS IN EACH KIT; FOR FIELD USE TO DETECT THE VIRUS IN INFECTED MOSQUITO VECTORS |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 6550NCM139416 | 64616 | DEFENSE MEDICAL STANDARDIZATION BOARD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 837519 | 89875 | DEFENSE LOGISTICS AGENCY DIRECTORATE OF MEDICAL MATERIEL DEFENSE SUPPLY CENTER PHILADELPHIA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| WSE-K050 | 3M5F7 | VECTOR TEST SYSTEMS, INC. DBA VECTOR TEST SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-08 | $870.00 | 1 | VECTOR TEST SYSTEMS, INC. DBA VECTOR TEST SYSTEMS | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550016211941) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-08 | [SPE2DS27V0369](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550016211941) | TEST KIT, WNV, SLE, AND EEE VIRUS ANTIGEN P | VECTOR TEST SYSTEMS, INC. DBA VECTOR TEST SYSTEMS | $870.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6550016211941&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550016211941
- 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/6550-01-621-1941/
JSON: https://nsnexplorer.com/api/nsn/6550-01-621-1941.json