The Watch Glass,laboratory, cataloged under National Stock Number 6640-00-273-7055, 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 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6640-00-273-7055 |
| Primary Part Number | 9985-75 |
| Item Name | Watch Glass,laboratory |
| FSC / FSG | 6640 / 66 — No Item Name Available |
| Manufacturer | Corning Glass Works |
| Status | CANCELLED |
| Convex Side Ribbed Feature | NOT PROVIDED |
| Overall Diameter | 73.000 MILLIMETERS MINIMUM AND 77.000 MILLIMETERS MAXIMUM MM |
| Shape | CIRCULAR |
| Linear Expansion Coefficient Per Deg Celsius | 0.0000033 |
| Linear Expansion Coefficient Temp Range in Deg Celsius | -0.1 TO 300.0 |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| DD-W-131 CLASZ75MM | General Services Administration Federal Supply Service (USA) |
| DD-W-131 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 9985 | Corning Glass Works (USA) |
| MS36000-2 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 9985-75 PRIMARY | Corning Glass Works (USA) |
NSN 6640-00-273-7055 is a Watch Glass,laboratory, manufactured by Corning Glass Works, classified under FSC 6640 (No Item Name Available). Status: cancelled.
NSN 6640-00-273-7055 has 5 cross-referenced part numbers: DD-W-131 CLASZ75MM (General Services Administration Federal Supply Service), DD-W-131 (Federal Specifications Promulgated by General Services Administration Washington DC), 9985 (Corning Glass Works), MS36000-2 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 9985-75 (Corning Glass Works).
There are 12 known substitutes for 6640-00-273-7055: 2825-00-218-6082, 6640-00-290-6789, 6640-00-290-6808 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 9985-75: Convex Side Ribbed Feature: NOT PROVIDED; Overall Diameter: 73.000 MILLIMETERS MINIMUM AND 77.000 MILLIMETERS MAXIMUM MM; Shape: CIRCULAR; Part Name Assigned by Controlling Agency: CLASZ75MM. 6 total characteristics are documented in the Federal Logistics Information System.
NSN 6640-00-273-7055 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.