The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-020-1378, 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 Pacific Powertech Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-020-1378 |
| Primary Part Number | G-1M-25 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Pacific Powertech Llc |
| Status | ACTIVE |
| Scale Name | PRESSURE |
| Actuation Type | BOURDON TUBE |
| Scale Smallest Increment | 10.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Scale Range | +0.0 TO 1000.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2-1/2 IN. DIA IN |
| Graduation Unit | 100.0 POUNDS PER SQUARE INCH LBS |
| Pointer Color | BLACK |
| 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 |
|---|---|
| G-1M-25 PRIMARY | Pacific Powertech Llc (USA) |
| Reference | Meaning |
|---|---|
| 2 1-2DL1-4NPT | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 6685-01-020-1378 is a Gage,pressure,dial Indicating, manufactured by Pacific Powertech Llc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-020-1378 has 1 manufacturer part number on file: G-1M-25 (Pacific Powertech Llc).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-021-3064. Verify interchangeability with system specifications before substitution.
Key specifications for G-1M-25: Scale Name: PRESSURE; Actuation Type: BOURDON TUBE; Scale Smallest Increment: 10.0 POUNDS PER SQUARE INCH (PSI) LBS; Scale Range: +0.0 TO 1000.0 POUNDS PRESSURE PER SQUARE INCH LBS. 11 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.