The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-993-8279, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-993-8279 |
| Item Name | Thermometer,indicating,capillary |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Flexible Tube Length | 660.000 INCHES NOMINAL IN |
| Mounting Facility Type and Quantity | 1 FLUSH AND 3 HOLE |
| Bulb Overall Length | 4.500 INCHES NOMINAL IN |
| Bulb Type | PLAIN RIGID |
| Socket Overall Length | 4.250 INCHES NOMINAL IN |
| Active Portion Diameter | 0.813 INCHES NOMINAL IN |
| Separable Socket Style | PLAIN SOCKET |
| Scale Inscription/background Color | BLACK MARKINGS ON YELLOW BACKGROUND |
| Scale Smallest Increment | 5.0 DEG FAHRENHEIT |
| Scale Accuracy Rating | 1 PCT ABOVE 5 PCT OF RANGE SPAN |
| Bulb Connection Type | THREADED |
| Dial Diameter | 4.500 INCHES NOMINAL IN |
| Indicator Connection Method | FLEXIBLE TUBE |
| Unthreaded Mounting Hole Diameter | 0.219 INCHES NOMINAL IN |
| Case Diameter | 6.000 INCHES NOMINAL IN |
| Pointer/pen Type and Quantity | 1 INDICATING SINGLE |
| Active Portion Length | 2.500 INCHES NOMINAL IN |
| Scale Type | CONCENTRIC DIAL |
| Bulb Tip Outside Diameter | 0.188 INCHES NOMINAL IN |
| Mounting Bolt Circle Diameter | 5.578 INCHES NOMINAL IN |
| Bulb Quantity | 1 |
| External Thread Size | 1 IN. NPT IN |
| Internal Thread Size | 1.250 IN. -18 NS IN |
| Material | STEEL CORROSION RESISTING BULB |
| 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 |
| Reference | Meaning |
|---|---|
| D315653-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-00-993-8279 is a Thermometer,indicating,capillary, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-00-993-8279: Flexible Tube Length: 660.000 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 1 FLUSH AND 3 HOLE; Bulb Overall Length: 4.500 INCHES NOMINAL IN; Bulb Type: PLAIN RIGID. 25 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.