The Gram Stain Kit,tiss, cataloged under National Stock Number 6550-01-449-4352, 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 Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6550-01-449-4352 |
| Primary Part Number | HT90T-1KT |
| Item Name | Gram Stain Kit,tiss |
| FSC / FSG | 6550 / 65 — In Vitro Diagnostic Substances, Reagents, Test Kits and Sets |
| Manufacturer | Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| HT90T-1KT PRIMARY | Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc (USA) |
| Reference | Meaning |
|---|---|
| HT90T-1KT | 3/9 Design control — primary reference Sigma-Aldrich Corporation |
| 97-0657 | 5/1 Secondary reference U.S. Government activity |
| HT90T | 5/9 Secondary reference Sigma-Aldrich Corporation |
NSN 6550-01-449-4352 is a Gram Stain Kit,tiss, manufactured by Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc, classified under FSC 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. Status: active.
NSN 6550-01-449-4352 has 1 manufacturer part number on file: HT90T-1KT (Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc).
Key specifications for HT90T-1KT: Special Features: CONSIST OF: CRYSTAL VIOLET SOLUTION 8FL OZ, GRAM;S IODINE SOLUTION 8FL OZ, SAFRANIN O SOLUTION 8FL OZ AND TARTRAZINE SOLUTION 250ML; Part Name Assigned by Controlling Agency: GRAM STAIN TISSUE KIT CRYSTAL VIOLET GRAMS IODINE SAFRANIN TARTRAZINE. 0 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.