The Wright-Giemsa Staining Set, cataloged under National Stock Number 6550-01-438-5684, is classified within Federal Supply Class 6550 (In Vitro Diagnostic Substances, Reagents, Test Kits and Sets) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is Cd Acquisition Holdings Inc Dba Columbia Diagnostics. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6550-01-438-5684 |
| Primary Part Number | H4320A |
| Item Name | Wright-Giemsa Staining Set |
| FSC / FSG | 6550 / 65 — In Vitro Diagnostic Substances, Reagents, Test Kits and Sets |
| Manufacturer | Cd Acquisition Holdings Inc Dba Columbia Diagnostics |
| Status | ACTIVE |
| Unit Package Quantity | 6 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| H4320A PRIMARY | Cd Acquisition Holdings Inc Dba Columbia Diagnostics (USA) |
| Reference | Meaning |
|---|---|
| HEMATOLOGY STAIN PACK | 3/1 Design control — primary reference Cd Acquisition Holdings Inc Dba Columbia Diagnostics |
NSN 6550-01-438-5684 is a Wright-Giemsa Staining Set, manufactured by Cd Acquisition Holdings Inc Dba Columbia Diagnostics, classified under FSC 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. Status: active.
NSN 6550-01-438-5684 has 1 manufacturer part number on file: H4320A (Cd Acquisition Holdings Inc Dba Columbia Diagnostics).
Key specifications for H4320A: Unit Package Quantity: 6; Special Features: HEMATOLOGY STAIN PACK; WRIGHT-GIEMSA; METHANOL COMPONENT; CLEAR/COLORLESS LIQUID; FAINT ALCOHOLIC ODOR.. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.