The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-01-474-3554, 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 19 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-474-3554 |
| Item Name | Thermometer,indicating,capillary |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Flexible Tube Length | 360.000 INCHES NOMINAL IN |
| Mounting Facility Type and Quantity | 1 FLUSH |
| Bulb Overall Length | 3.687 INCHES NOMINAL IN |
| Bulb Type | PLAIN RIGID |
| Active Portion Diameter | 0.375 INCHES NOMINAL IN |
| Bulb Connection Type | THREADED UNION |
| Dial Diameter | 4.500 INCHES NOMINAL IN |
| Style Designator | PLAIN RIGID |
| Case Diameter | 4.875 INCHES NOMINAL IN |
| Actuating Medium | AIR |
| Pointer/pen Type and Quantity | 1 INDICATING SINGLE |
| Active Portion Length | 3.500 INCHES NOMINAL IN |
| Extension Neck Length | 0.187 INCHES NOMINAL IN |
| Scale Type | DIAL |
| Scale Measurement Range | -40.000 TO 180.000 DEG FAHRENHEIT |
| Bulb Quantity | 1 |
| Bulb Tip Length | 3.687 INCHES NOMINAL IN |
| Bulb Style | PLAIN BULB |
| Material | STEEL COMP 316 OVERALL |
| 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 |
|---|---|
| MIL-T-19646 | 4/1 Identification reference U.S. Government activity |
| 41GHV00FA30Y | 5/1 Secondary reference Ashcroft Inc Dba Heise |
| M19646-A118D30 | 2/2 Government specification standardization U.S. Government activity |
NSN 6685-01-474-3554 is a Thermometer,indicating,capillary, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-474-3554: Flexible Tube Length: 360.000 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 1 FLUSH; Bulb Overall Length: 3.687 INCHES NOMINAL IN; Bulb Type: PLAIN RIGID. 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.