The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-561-6900, 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 Noshok Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-561-6900 |
| Primary Part Number | 25-120-300-PSI/KPA |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Noshok Inc |
| Status | ACTIVE |
| Scale Accuracy | PORM 2.5 PCT FULL SCALE |
| Scale Name | KILOPASCALS AND PRESSURE |
| Actuation Type | BOURDON TUBE |
| Scale Inscription/background Color | PSI BLACK LETTERS; KPA RED LETTERS; WHITE BACKGROUND |
| Scale Smallest Increment | 5.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Scale Range | +0.0 TO 300.0 POUNDS PER SQUARE INCH LBS |
| Scale Type | CIRCULAR |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2-1/2 INCH IN |
| Graduation Unit | 50.0 POUNDS PER SQUARE INCH LBS |
| Pointer Color | BLACK |
| Material | COPPER ALLOY 511 ACTUATING ELEMENT |
| 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 |
|---|---|
| 25-120-300-PSI/KPA PRIMARY | Noshok Inc (USA) |
| Reference | Meaning |
|---|---|
| 100784 | 5/1 Secondary reference Dh Instruments Inc. |
| 25.120, 300 PSI | 5/9 Secondary reference Noshok Inc |
NSN 6685-01-561-6900 is a Gage,pressure,dial Indicating, manufactured by Noshok Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-561-6900 has 1 manufacturer part number on file: 25-120-300-PSI/KPA (Noshok Inc).
2 possible matches (shared part number, not a government interchangeability claim): 6530-01-610-7675, 5915-01-610-8856. Verify interchangeability with system specifications before substitution.
Key specifications for 25-120-300-PSI/KPA: Scale Accuracy: PORM 2.5 PCT FULL SCALE; Scale Name: KILOPASCALS AND PRESSURE; Actuation Type: BOURDON TUBE; Scale Inscription/background Color: PSI BLACK LETTERS; KPA RED LETTERS; WHITE BACKGROUND. 12 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.