The Indicator,pressure, cataloged under National Stock Number 6685-01-601-4381, 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 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-601-4381 |
| Item Name | Indicator,pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Current Type | DC |
| DC Voltage Rating | 4.5 VOLTS NOMINAL |
| Accuracy Rating | 0.1 POUNDS PER SQUARE INCH SINGLE INDICATOR SINGLE SCALE LBS |
| Presentation Type | DIGITAL DISPLAY |
| Display Type | LIQUID CRYSTAL |
| Material | ALUMINUM ALLOY CASE |
| 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 |
|---|---|
| 3KPSIXP2I | 3/1 Design control — primary reference Crystal Engineering Corp |
NSN 6685-01-601-4381 is a Indicator,pressure, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6685-01-670-6709. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-01-601-4381: Current Type: DC; DC Voltage Rating: 4.5 VOLTS NOMINAL; Accuracy Rating: 0.1 POUNDS PER SQUARE INCH SINGLE INDICATOR SINGLE SCALE LBS; Presentation Type: DIGITAL DISPLAY. 6 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.