The Flask,dewar, cataloged under National Stock Number 6640-01-552-1555, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Midmed Midmed Pty Ltd. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-01-552-1555 |
| Primary Part Number | XT-20 |
| Item Name | Flask,dewar |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Midmed Midmed Pty Ltd |
| Status | ACTIVE |
| Material | ALUMINUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 6640-01-552-1555 is a Flask,dewar, manufactured by Midmed Midmed Pty Ltd, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-552-1555 has 2 manufacturer part numbers on file: XT-20 (Midmed Midmed Pty Ltd), XT-20 (Avt Services Pty Ltd).
Key specifications for XT-20: Special Features: HEIGHT: 25.8 IN; DIAMETER: 15.6 IN; CANISTER DIMENSIONS: 1.5 X 11 IN IN; Material: ALUMINUM. 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.