The Slide,microscope, cataloged under National Stock Number 6640-01-156-3584, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Arthur H. Thomas Company. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-01-156-3584 |
| Primary Part Number | 6685F20 |
| Item Name | Slide,microscope |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Arthur H. Thomas Company |
| Status | ACTIVE |
| Unit Package Type | PACKAGE |
| Overall Thickness | 1.1 MILLIMETERS MINIMUM AND 1.3 MILLIMETERS MAXIMUM MM |
| Unit Package Quantity | 144 |
| Material | GLASS |
| 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 |
|---|---|
| 6685F20 PRIMARY | Arthur H. Thomas Company (USA) |
| Reference | Meaning |
|---|---|
| RED LABEL SPECIAL GRADE | 5/1 Secondary reference Arthur H. Thomas Company |
| 6685-D20 | 5/9 Secondary reference Arthur H. Thomas Company |
NSN 6640-01-156-3584 is a Slide,microscope, manufactured by Arthur H. Thomas Company, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-156-3584 has 1 manufacturer part number on file: 6685F20 (Arthur H. Thomas Company).
Key specifications for 6685F20: Unit Package Type: PACKAGE; Overall Thickness: 1.1 MILLIMETERS MINIMUM AND 1.3 MILLIMETERS MAXIMUM MM; Overall Length: 76.2 MILLIMETERS NOMINAL MM; Overall Width: 25.4 MILLIMETERS NOMINAL MM. 4 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.