The Watch Glass,laboratory, cataloged under National Stock Number 6640-00-290-6808, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Corning Glass Works. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6640-00-290-6808 |
| Primary Part Number | 9985 |
| Item Name | Watch Glass,laboratory |
| FSC / FSG | 6640 / 66 — No Item Name Available |
| Manufacturer | Corning Glass Works |
| Status | CANCELLED |
| Linear Expansion Coefficient Per Deg Celsius | 0.0000033 |
| Shape | CIRCULAR |
| Convex Side Ribbed Feature | NOT PROVIDED |
| Linear Expansion Coefficient Temp Range in Deg Celsius | +0.0 TO 300.0 |
| Overall Diameter | 63.000 MILLIMETERS MINIMUM AND 67.000 MILLIMETERS MAXIMUM MM |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 6640-00-290-6808 is a Watch Glass,laboratory, manufactured by Corning Glass Works, classified under FSC 6640 (No Item Name Available). Status: cancelled.
NSN 6640-00-290-6808 has 3 cross-referenced part numbers: 9985 (Corning Glass Works), MS36000-1 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 82-700 (Manostat Corp).
There are 11 known substitutes for 6640-00-290-6808: 2825-00-218-6082, 6640-00-273-7055, 3439-00-372-3480 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 9985: Linear Expansion Coefficient Per Deg Celsius: 0.0000033; Shape: CIRCULAR; Convex Side Ribbed Feature: NOT PROVIDED; Linear Expansion Coefficient Temp Range in Deg Celsius: +0.0 TO 300.0. 5 total characteristics are documented in the Federal Logistics Information System.
NSN 6640-00-290-6808 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.