The Papanicolaou Stain, cataloged under National Stock Number 6550-01-198-2556, 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 Richard-Allan Scientific Llc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: BT.
| Parameter | Value |
|---|---|
| NSN | 6550-01-198-2556 |
| Primary Part Number | 75211 |
| Item Name | Papanicolaou Stain |
| FSC / FSG | 6550 / 65 — In Vitro Diagnostic Substances, Reagents, Test Kits and Sets |
| Manufacturer | Richard-Allan Scientific Llc |
| Status | ACTIVE |
| Primary Container Content Quantity | 1.000 GALLONS |
| Primary Container Type | BOTTLE |
| Physical Form | LIQUID |
| Usage Design | F/CYTOLOGICAL STAINING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | BT |
| Part Number | Manufacturer |
|---|---|
| 75211 PRIMARY | Richard-Allan Scientific Llc (USA) |
| S7439-39 | Cardinal Health 200, Llc (USA) |
| 7052X/85 PRIMARY | Emd Chemicals Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7052X | 5/9 Secondary reference E M Science Div of E M Industries Inc |
| S7734-3 | 5/9 Secondary reference Baxter Healthcare Corp Baxter Scientific Products Div Government Sales |
| 7052X/85 | 5/9 Secondary reference E M Science Div of E M Industries Inc |
| S7734-3 | 5/9 Secondary reference Cardinal Health 200, Llc |
NSN 6550-01-198-2556 is a Papanicolaou Stain, manufactured by Richard-Allan Scientific Llc, classified under FSC 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. Status: active.
NSN 6550-01-198-2556 has 3 manufacturer part numbers on file: 75211 (Richard-Allan Scientific Llc), S7439-39 (Cardinal Health 200, Llc), 7052X/85 (Emd Chemicals Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 3110-01-337-5812, 5999-01-571-4590. Verify interchangeability with system specifications before substitution.
Key specifications for 75211: Primary Container Content Quantity: 1.000 GALLONS; Primary Container Type: BOTTLE; Physical Form: LIQUID; Special Features: TYPE OG-6. 4 specifications are 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.