The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-526-7066, 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 Cummins Inc.. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-526-7066 |
| Primary Part Number | 41608A |
| Item Name | Thermometer,indicating,capillary |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Flexible Tube Length | 28.000 INCHES NOMINAL IN |
| Mounting Facility Type and Quantity | 1 FLUSH AND 3 HOLE |
| Bulb Overall Length | 2.000 INCHES NOMINAL IN |
| Bulb Type | PLAIN RIGID |
| Active Portion Diameter | 0.438 INCHES NOMINAL IN |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 30.0 DEG FAHRENHEIT |
| Scale Accuracy Rating | PORM 5 DEG F PCT DEGF |
| Bulb Connection Type | UNION |
| Dial Diameter | 1.688 INCHES NOMINAL IN |
| Indicator Connection Method | FLEXIBLE TUBE |
| Unthreaded Mounting Hole Diameter | 0.171 INCHES NOMINAL IN |
| Case Diameter | 2.688 INCHES NOMINAL IN |
| Actuating Medium | METHYLENE CHLORIDE |
| Pointer/pen Type and Quantity | 1 INDICATING SINGLE |
| Active Portion Length | 1.313 INCHES NOMINAL IN |
| Scale Type | CONCENTRIC DIAL |
| Case Type | DUSTPROOF AND VAPORPROOF |
| Mounting Bolt Circle Diameter | 2.375 INCHES NOMINAL IN |
| Scale Measurement Range | +100.000 TO 250.000 DEG FAHRENHEIT |
| Bulb Quantity | 1 |
| Material | STEEL METER CASE |
| Material | STEEL CORROSION RESISTING BULB |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 6685-00-526-7066 is a Thermometer,indicating,capillary, manufactured by Cummins Inc., classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-526-7066 has 4 manufacturer part numbers on file: S2420B (Cummins Inc.), 41608A (Cummins Inc.), 41610A (Cummins Inc.), S2843 (Cummins Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5360-00-737-2563. Verify interchangeability with system specifications before substitution.
Key specifications for 41608A: Flexible Tube Length: 28.000 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 1 FLUSH AND 3 HOLE; Bulb Overall Length: 2.000 INCHES NOMINAL IN; Bulb Type: PLAIN RIGID. 23 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.