The Pouch,conductivity Standard, cataloged under National Stock Number 6640-01-491-0345, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Cole-Parmer Instrument Company, Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-01-491-0345 |
| Primary Part Number | 35653-13 |
| Item Name | Pouch,conductivity Standard |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Cole-Parmer Instrument Company, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 35653-13 PRIMARY | Cole-Parmer Instrument Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| U-35653-13 | 5/1 Secondary reference Cole-Parmer Instrument Company, Llc |
NSN 6640-01-491-0345 is a Pouch,conductivity Standard, manufactured by Cole-Parmer Instrument Company, Llc, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-491-0345 has 1 manufacturer part number on file: 35653-13 (Cole-Parmer Instrument Company, Llc).
Key specifications for 35653-13: Special Features: STANDARDIZED TO CALIBRATE YOUR CONDUCTIVITY OR TOTAL DISSOLVED SOLIDS METER; SOLUTION IS MADE OF REAGENT-GRADE KCI AND PURE 5 M WATER; 2 YR SHELF LIFE; SINGLE USE POUCH SEALED TO ENSURE FRESHNESS CAN GO ANYWHERE; CONDUCTIVITY:15,000 US; 20 POUCHES PER PKG US. 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.