The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-01-078-5568, 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 Bellofram Corporation. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-078-5568 |
| Primary Part Number | K5040 |
| Item Name | Thermometer,indicating,capillary |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Bellofram Corporation |
| Status | ACTIVE |
| Flexible Tube Length | 72.000 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 | 1.0 DEG FAHRENHEIT |
| Bulb Connection Type | UNION |
| Dial Diameter | 3.500 INCHES NOMINAL IN |
| Indicator Connection Method | FLEXIBLE TUBE |
| Style Designator | BULB W/O SOCKET |
| Case Diameter | 4.750 INCHES NOMINAL IN |
| Actuating Medium | VAPOR TENSION |
| Pointer/pen Type and Quantity | 1 INDICATING SINGLE |
| Active Portion Length | 2.812 INCHES NOMINAL IN |
| Scale Type | DIAL |
| Mounting Bolt Circle Diameter | 4.312 INCHES NOMINAL IN |
| Scale Measurement Range | +20.000 TO 120.000 DEG FAHRENHEIT |
| Bulb Quantity | 1 |
| Bulb Tip Length | 2.812 INCHES NOMINAL IN |
| Bulb Style | PLAIN BULB W/BENDABLE EXTENSION |
| Material | STEEL METER CASE |
| Material | COPPER ALLOY BULB |
| 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 |
|---|---|
| K5040 | Bellofram Corporation (USA) |
| Reference | Meaning |
|---|---|
| K5040 | 3/9 Design control — primary reference Desco Corp Marsh Bellofram Div |
NSN 6685-01-078-5568 is a Thermometer,indicating,capillary, manufactured by Bellofram Corporation, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-078-5568 has 1 manufacturer part number on file: K5040 (Bellofram Corporation).
Key specifications for K5040: Flexible Tube Length: 72.000 INCHES NOMINAL IN; Bulb Type: PLAIN RIGID; Active Portion Diameter: 0.438 INCHES NOMINAL IN; Scale Inscription/background Color: BLACK MARKINGS ON WHITE BACKGROUND. 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.