The Chlorine Test Reagent, cataloged under National Stock Number 6550-01-504-0944, 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 Hach Pacific Pty Ltd. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6550-01-504-0944 |
| Primary Part Number | 2635300 |
| Item Name | Chlorine Test Reagent |
| FSC / FSG | 6550 / 65 — In Vitro Diagnostic Substances, Reagents, Test Kits and Sets |
| Manufacturer | Hach Pacific Pty Ltd |
| Status | ACTIVE |
| Primary Container Content Quantity | 2.000 MILLIGRAMS |
| Primary Container Type | VIAL |
| Physical Form | LIQUID |
| Usage Design | FOR WATER TESTING |
| Total Primary Container Quantity | 1 |
| 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 |
|---|---|
| 2635300 | Hach Pacific Pty Ltd (AUS) |
| 2635300 | Saab Australia Pty Ltd (AUS) |
| HACH 26353-00 | Hach Lange Nv (BEL) |
| Reference | Meaning |
|---|---|
| 26353-00 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6550-01-504-0944 is a Chlorine Test Reagent, manufactured by Hach Pacific Pty Ltd, classified under FSC 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. Status: active.
NSN 6550-01-504-0944 has 3 manufacturer part numbers on file: 2635300 (Hach Pacific Pty Ltd), 2635300 (Saab Australia Pty Ltd), HACH 26353-00 (Hach Lange Nv).
1 possible match (shared part number, not a government interchangeability claim): 6810-01-654-4850. Verify interchangeability with system specifications before substitution.
Key specifications for 2635300: Primary Container Content Quantity: 2.000 MILLIGRAMS; Primary Container Type: VIAL; Physical Form: LIQUID; Part Name Assigned by Controlling Agency: CHLORINE, STANDARD. 5 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.