The Thermometer,thawing System,plasm, cataloged under National Stock Number 6640-01-652-4828, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Helmer Scientific Llc Dba Helmer. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-01-652-4828 |
| Primary Part Number | 500606-1 |
| Item Name | Thermometer,thawing System,plasm |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Helmer Scientific Llc Dba Helmer |
| 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 |
|---|---|
| 500606-1 PRIMARY | Helmer Scientific Llc Dba Helmer (USA) |
| Reference | Meaning |
|---|---|
| 1396517 | 5/1 Secondary reference U.S. Government activity |
| 6640NCM162591 | 5/1 Secondary reference Defense Medical Standardization Board |
NSN 6640-01-652-4828 is a Thermometer,thawing System,plasm, manufactured by Helmer Scientific Llc Dba Helmer, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-652-4828 has 1 manufacturer part number on file: 500606-1 (Helmer Scientific Llc Dba Helmer).
Key specifications for 500606-1: Special Features: THE SOLAR-POWERED DT1 THERMOMETER WITH LCD READ-OUT DISPLAYS THE CHAMBER TEMPERATURE TO A TENTH OF A DEGREE; THE STAINLESS STEEL PROBE INSERTS INTO THE WATER CHAMBER; QUICKTHAW PLASMA THAWING SYSTEMS ARE EQUIPPED WITH A BUILT-IN THERMOMETER HOLDER TO ACCEPT THE DT1; FOR USE WITH THE QUICKTHAW PLASMA THAWING SYSTEMS DH2/DH4/DH8; Part Name Assigned by Controlling Agency: DT1 DIGITAL THERMOMETER; End Item Identification: 6640-01-571-1389; THAWING SYSTEM,PLASMA. 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.