The Shield,heat,distilling Flask, cataloged under National Stock Number 6640-00-359-9644, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Precision Scientific Petroleum Instruments Co. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-00-359-9644 |
| Primary Part Number | 61838 |
| Item Name | Shield,heat,distilling Flask |
| FSC / FSG | 6640 / 66 — No Item Name Available |
| Manufacturer | Precision Scientific Petroleum Instruments Co |
| Status | ACTIVE |
| Material | VERMICULITE AND CEMENT |
| Depth | 0.812 INCHES NOMINAL IN |
| Center Hole Diameter | 3.500 INCHES NOMINAL IN |
| Bevel Recess | PROVIDED |
| Top Diameter | 4.000 INCHES NOMINAL IN |
| Overall Thickness | 1.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 61838 PRIMARY | Precision Scientific Petroleum Instruments Co (USA) |
NSN 6640-00-359-9644 is a Shield,heat,distilling Flask, manufactured by Precision Scientific Petroleum Instruments Co, classified under FSC 6640 (No Item Name Available). Status: active.
NSN 6640-00-359-9644 has 1 cross-referenced part number: 61838 (Precision Scientific Petroleum Instruments Co).
There are 3 known substitutes for 6640-00-359-9644: 5930-00-112-4579, 4210-00-859-6594, 5330-01-366-5258. Verify interchangeability with system specifications before substitution.
Key specifications for 61838: Material: VERMICULITE AND CEMENT; Depth: 0.812 INCHES NOMINAL IN; Overall Width: 4.750 INCHES NOMINAL IN; Center Hole Diameter: 3.500 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.