The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-525-3299, 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 Ametek, Inc. Div Process & Analytical Instruments Division. Government technical data includes 25 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-525-3299 |
| Primary Part Number | 656615CN4CD3ACL |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ametek, Inc. Div Process & Analytical Instruments Division |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Scale Accuracy | 1.6 PERCENT OF FULL SCALE |
| Scale Name | POUNDS PRESSURE AND KILOPASCALS |
| Overall Diameter | 131.0 MILLIMETERS NOMINAL MM |
| Actuation Type | BOURDON TUBE |
| Mounting Method | FLANGE |
| Scale Inscription/background Color | WHITE ALUMINUM WITH BLACK LETTERING |
| Scale Smallest Increment | 10.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 600.0 POUNDS PER SQUARE INCH LBS |
| Scale Name for Which Pointer Is Designed | KILOPASCALS AND POUNDS PRESSURE |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | DIAL |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 100.0 MILLIMETER NOM. DIAMETER MM |
| Graduation Unit | 100.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK, LOWER |
| Pointer Color | BLACK |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | STEEL CORROSION RESISTING CASE |
| Material | STEEL CORROSION RESISTING ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Bezel Type | BAYONET |
| Connection Size | 0.250 INCH NPT DIAMETER IN |
| 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 |
|---|---|
| 656615CN4CD3ACL PRIMARY | Ametek, Inc. Div Process & Analytical Instruments Division (USA) |
NSN 6685-01-525-3299 is a Gage,pressure,dial Indicating, manufactured by Ametek, Inc. Div Process & Analytical Instruments Division, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-525-3299 has 1 manufacturer part number on file: 656615CN4CD3ACL (Ametek, Inc. Div Process & Analytical Instruments Division).
Key specifications for 656615CN4CD3ACL: Mounting Hole Quantity: 3; Scale Accuracy: 1.6 PERCENT OF FULL SCALE; Scale Name: POUNDS PRESSURE AND KILOPASCALS; Overall Diameter: 131.0 MILLIMETERS NOMINAL MM. 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.