The Naphthyl Acetate Staining Kit, cataloged under National Stock Number 6550-01-375-9001, is classified within Federal Supply Class 6550 (In Vitro Diagnostic Substances, Reagents, Test Kits and Sets) of the Medical, Dental, and Veterinary Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6550-01-375-9001 |
| Item Name | Naphthyl Acetate Staining Kit |
| FSC / FSG | 6550 / 65 — In Vitro Diagnostic Substances, Reagents, Test Kits and Sets |
| Status | ACTIVE |
| Component Quantity | 6 |
| Nonsupply Items and Quantities | 10ML BT A-NAPHTHYL ACETATE SOLUTION 1; 10 ML BT FAST BLUE BB BASE SOLUTIOZ 1; 50 ML BT TRIZMAL 7.6 CONCENTRATE 1; 10 ML BT SODIUM NITRITE SOLUTION 1; 50 ML BT CITRATE SOLUTION 1; 50 ML BT HEMATOXYLIN SOLUTION GILL NO. 3 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 91-A | 3/9 Design control — primary reference Sigma Chemical Co |
| F93D163 | 5/1 Secondary reference Air Force Medical Logistics Office |
NSN 6550-01-375-9001 is a Naphthyl Acetate Staining Kit, classified under FSC 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5120-01-430-9431. Verify interchangeability with system specifications before substitution.
Key specifications for 6550-01-375-9001: Component Quantity: 6; Nonsupply Items and Quantities: 10ML BT A-NAPHTHYL ACETATE SOLUTION 1; 10 ML BT FAST BLUE BB BASE SOLUTIOZ 1; 50 ML BT TRIZMAL 7.6 CONCENTRATE 1; 10 ML BT SODIUM NITRITE SOLUTION 1; 50 ML BT CITRATE SOLUTION 1; 50 ML BT HEMATOXYLIN SOLUTION GILL NO. 3 1; Special Features: NON-SPECIFIC ESTERASE; FOR RESEARCH ONLY. 2 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.