The Shield,heat,distilling Flask, cataloged under National Stock Number 6640-00-359-9645, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Precision Scientific Petroleum Instruments Co. Government technical data includes 6 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-00-359-9645 |
| Primary Part Number | 61824 |
| Item Name | Shield,heat,distilling Flask |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Precision Scientific Petroleum Instruments Co |
| Status | ACTIVE |
| Top Diameter | 4.000 INCHES NOMINAL IN |
| Overall Thickness | 0.875 INCHES NOMINAL IN |
| Bevel Recess | PROVIDED |
| Center Hole Diameter | 1.250 INCHES NOMINAL IN |
| Depth | 0.500 INCHES NOMINAL IN |
| Material | PORCELAIN |
| 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 |
|---|---|
| 61824 PRIMARY | Precision Scientific Petroleum Instruments Co (USA) |
NSN 6640-00-359-9645 is a Shield,heat,distilling Flask, manufactured by Precision Scientific Petroleum Instruments Co, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-00-359-9645 has 1 manufacturer part number on file: 61824 (Precision Scientific Petroleum Instruments Co).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-179-9468, 3110-01-360-5417. Verify interchangeability with system specifications before substitution.
Key specifications for 61824: Top Diameter: 4.000 INCHES NOMINAL IN; Overall Thickness: 0.875 INCHES NOMINAL IN; Overall Length: 4.750 INCHES NOMINAL IN; Overall Width: 4.750 INCHES NOMINAL IN. 6 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.