The Tube,sampling,dissolved Oxygen C, cataloged under National Stock Number 6640-01-325-0101, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Vitaltest Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6640-01-325-0101 |
| Primary Part Number | VT0028 |
| Item Name | Tube,sampling,dissolved Oxygen C |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Vitaltest Inc |
| Status | ACTIVE |
| General Characteristics Item Description | REPLACEMENT SAMPLING TUBE; POLYCARBONATE; 1.06 IN. DIA X 4.31 IN. HIGH; TAPERED AT END TO APPROX .25 IN.; USED IN SAMPLING BOILER FEED WATER IN THE DETERMINATION OF DISSOLVED OXYGEN; USED W/COMPARATOR TEST KIT PN 21-115 IN |
| 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 |
|---|---|
| VT0028 PRIMARY | Vitaltest Inc (USA) |
| Reference | Meaning |
|---|---|
| 133 448031 | 5/1 Secondary reference Naval Medical Material Support Command Detachment |
NSN 6640-01-325-0101 is a Tube,sampling,dissolved Oxygen C, manufactured by Vitaltest Inc, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-325-0101 has 1 manufacturer part number on file: VT0028 (Vitaltest Inc).
Key specifications for VT0028: General Characteristics Item Description: REPLACEMENT SAMPLING TUBE; POLYCARBONATE; 1.06 IN. DIA X 4.31 IN. HIGH; TAPERED AT END TO APPROX .25 IN.; USED IN SAMPLING BOILER FEED WATER IN THE DETERMINATION OF DISSOLVED OXYGEN; USED W/COMPARATOR TEST KIT PN 21-115 IN. 1 specification is 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.