The Thermometer,self-Indicating,bime, cataloged under National Stock Number 6685-00-804-2028, 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 Air Products & Chemicals, Inc. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-804-2028 |
| Primary Part Number | 26590-826A1 |
| Item Name | Thermometer,self-Indicating,bime |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Air Products & Chemicals, Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 METAL CASE FIXED |
| Socket Overall Length | 4.250 INCHES NOMINAL IN |
| Design Type | FLUCTUATING |
| Scale Inscription/background Color | BLACK MARKING ON SILVER BACKGROUND |
| Scale Smallest Increment | 1.0 DEG CELSIUS |
| Scale Accuracy Rating | 1 PCT |
| Dial Diameter | 3.000 INCHES NOMINAL IN |
| Mounting Facility Screw Thread Series Designator | NPT |
| Features Provided | PROTECTIVE GLASS/PLASTIC |
| Immersion Length | 4.000 INCHES NOMINAL IN |
| Scale Type | CONCENTRIC DIAL |
| Mounting Facility Nominal Screw Thread Diameter | 0.500 INCHES IN |
| Bulb Tip Outside Diameter | 0.500 INCHES NOMINAL IN |
| Scale Measurement Range | -50.000 TO 50.000 DEG CELSIUS |
| External Thread Size | 0.750 |
| Internal Thread Size | 0.500 |
| Material | STEEL CORROSION RESISTING METER CASE |
| Scale Adjustment Variation | 1 DIVISION |
| Tip Length | 2.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 26590-826A1 PRIMARY | Air Products & Chemicals, Inc (USA) |
NSN 6685-00-804-2028 is a Thermometer,self-Indicating,bime, manufactured by Air Products & Chemicals, Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-804-2028 has 1 manufacturer part number on file: 26590-826A1 (Air Products & Chemicals, Inc).
Key specifications for 26590-826A1: Mounting Facility Type and Quantity: 1 METAL CASE FIXED; Socket Overall Length: 4.250 INCHES NOMINAL IN; Design Type: FLUCTUATING; Scale Inscription/background Color: BLACK MARKING ON SILVER BACKGROUND. 19 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.