The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-290-8191, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6685-00-290-8191 |
| Primary Part Number | 81GL-P00R-W40Y |
| Item Name | Thermometer,indicating,capillary |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Flexible Tube Length | 480.000 INCHES NOMINAL IN |
| Bulb Type | PLAIN RIGID |
| Scale Inscription/background Color | BLACK MARKING ON YELLOW BACKGROUND |
| Scale Smallest Increment | 5.0 DEG FAHRENHEIT |
| Scale Accuracy Rating | 10 DEG ACCURACY RATING BETWEEN 400 DEG AND 600 DEG F AND 5 DEG ACCURACY RATUNG ABOVE 600 DEG F DEGF |
| Bulb Connection Type | INTEGRAL FLANGE |
| Dial Diameter | 8.500 INCHES NOMINAL IN |
| Indicator Connection Method | FLEXIBLE TUBE |
| Style Designator | BULB W/O SOCKET |
| Case Diameter | 10.250 INCHES NOMINAL IN |
| Actuating Medium | GAS |
| Pointer/pen Type and Quantity | 1 INDICATING SINGLE AND 1 REFERENCE SINGLE |
| Active Portion Length | 10.000 INCHES NOMINAL IN |
| Features Provided | ZERO ADJUSTMENT |
| Scale Type | CONCENTRIC DIAL |
| Case Type | DUSTPROOF |
| Scale Measurement Range | +400.000 TO 1200.000 DEG FAHRENHEIT |
| Bulb Quantity | 1 |
| Bulb Tip Length | 10.000 INCHES NOMINAL IN |
| Bulb Style | PLAIN BULB W/BENDABLE EXTENSION |
| Material | ALUMINUM METER CASE |
| 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 |
|---|---|
| 81GL-P00R-W40Y PRIMARY | Ashcroft Inc Dba Heise (USA) |
| 85-T8478K-40E-100-0400 400/1200 | Ashcroft Inc Dba Heise (USA) |
| N1002-R-S10-F6-T40-G | Moeller Instrument Company, Inc. Dba Moeller Instrument Co (USA) |
| Reference | Meaning |
|---|---|
| 81ML-P00R-W40Y | 5/9 Secondary reference Weksler Glass Thermometer Corp |
| 81GL-P00R-W40Y | 5/9 Secondary reference Weksler Glass Thermometer Corp |
NSN 6685-00-290-8191 is a Thermometer,indicating,capillary, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-290-8191 has 3 manufacturer part numbers on file: 81GL-P00R-W40Y (Ashcroft Inc Dba Heise), 85-T8478K-40E-100-0400 400/1200 (Ashcroft Inc Dba Heise), N1002-R-S10-F6-T40-G (Moeller Instrument Company, Inc. Dba Moeller Instrument Co).
Key specifications for 81GL-P00R-W40Y: Flexible Tube Length: 480.000 INCHES NOMINAL IN; Bulb Type: PLAIN RIGID; Scale Inscription/background Color: BLACK MARKING ON YELLOW BACKGROUND; Scale Smallest Increment: 5.0 DEG FAHRENHEIT. 21 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.