# NSN 6550-01-524-4560: Assay Kit, Erythrocyte Cholineste

NSN 6550-01-524-4560 (also written 6550015244560; NIIN 01-524-4560) is an assay kit, erythrocyte cholineste 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 Aug 2026.

## Identification

- NSN: 6550-01-524-4560 (6550015244560)
- NIIN: 01-524-4560 (015244560)
- Item name: ASSAY KIT,ERYTHROCYTE CHOLINESTE
- 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 2026-11-04)
- Acquisition method code: 4

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | ASSAY ACHE ERYTHROCYTE CHOLINESTERASE 96 TESTS |
| AGAV | END ITEM IDENTIFICATION | CHOLINESTERASE TEST SYSTEM, 6630-01-462-4878 |
| FEAT | SPECIAL FEATURES | USED FOR THE QUANTITATIVE DETERMINATION OF ERYTHROCYTE CHOLINESTERASE IN WHOLE BLOOD TO MONITOR PESTICIDE AND/OR NERVE AGENT EXPOSURE; KIT INCLUDES: ASSAY BUFFER, PREMEASURED SINGLED TEST REAGENTS, CAPILLARY TUBES, WIPES, DISTILLED WATER, TRANSFER PIPETTES, 9-VOLT BATTERY AND PACKAGE INSERT; KIT CONSISTS OF 96 TESTS |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1612319 | 89875 | DEFENSE LOGISTICS AGENCY DIRECTORATE OF MEDICAL MATERIEL DEFENSE SUPPLY CENTER PHILADELPHIA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6550NCM217456 | 64616 | DEFENSE MEDICAL STANDARDIZATION BOARD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MODEL 460 | 1J2V6 | EQM RESEARCH INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-13 | [SPE2DS26V8820](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550015244560) | ASSAY KIT, ERYTHROCY | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | $689.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6550015244560&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6550015244560
- 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/6550-01-524-4560/
JSON: https://nsnexplorer.com/api/nsn/6550-01-524-4560.json