The Anti-Algae Solution, cataloged under National Stock Number 6640-01-657-7491, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Preston Industries 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 6640-01-657-7491 |
| Primary Part Number | 004-300040 |
| Item Name | Anti-Algae Solution |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Preston Industries Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 004-300040 PRIMARY | Preston Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 1418469 | 5/1 Secondary reference U.S. Government activity |
| 6532NCM163012 | 5/1 Secondary reference Defense Medical Standardization Board |
| POLYCLEAN CLARIFIER | 5/1 Secondary reference Preston Industries Inc |
NSN 6640-01-657-7491 is a Anti-Algae Solution, manufactured by Preston Industries Inc, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-657-7491 has 1 manufacturer part number on file: 004-300040 (Preston Industries Inc).
Key specifications for 004-300040: Special Features: PREVENTS GROWTH OF ALGAE AND KEEPS RESERVOIRS CLEAN AND ODOR-FREE; CONCENTRATED 8 OZ (237 ML) TREATS APPROXIMATELY 200 GALLONS (757 LITERS); USED WITH NSN 6640016108915 (THAWING SYSTEM,PLASMA AND FROZEN BLOOD); 8 OZ BOTTLE; ACTIVE INGREDIENTS: WATER, POLYETHYLENE(DIMETHYLIMINIO)ETHYLENE DICHLORIDE; MANUFACTURER IS CYTOTHERM LP, BUT HAS NO ACTIVE CAGE CODE OZ; Part Name Assigned by Controlling Agency: ALGICIDE; End Item Identification: 6640-01-610-8915. 0 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.