The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-028-9442, 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 Aerospace & Defense. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 6685-01-028-9442 |
| Primary Part Number | 055155 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ametek, Inc. Div Aerospace & Defense |
| Status | ACTIVE |
| Scale Accuracy | 2 PCT. MIDDLE THIRD OF RANGE,3 PCT. REMAINDER |
| Scale Name | PRESSURE |
| Overall Diameter | 2.150 INCHES MINIMUM AND 2.190 INCHES MAXIMUM IN |
| Actuation Type | BOURDON TUBE |
| Mounting Connection Location | BACK, CENTER |
| Mounting Method | CONNECTION |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Scale Smallest Increment | 2.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.000 TO 60.000 POUNDS PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | DIAL |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2 IN. DIA. IN |
| Graduation Unit | 10.000 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK, CENTER |
| Color | BLACK CASE |
| Pointer Color | BLACK |
| Surface Treatment | ENAMEL CASE |
| Material | STEEL CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | COPPER ALLOY 511 ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Bezel Type | SNAP-ON |
| Connection Size | 0.125 IN. NPT 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 |
|---|---|
| 055155 PRIMARY | Ametek, Inc. Div Aerospace & Defense (USA) |
| P500 1/8INCBM 0-60PSI 2INDIAL | Ametek, Inc. Div Aerospace & Defense (USA) |
NSN 6685-01-028-9442 is a Gage,pressure,dial Indicating, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-028-9442 has 2 manufacturer part numbers on file: 055155 (Ametek, Inc. Div Aerospace & Defense), P500 1/8INCBM 0-60PSI 2INDIAL (Ametek, Inc. Div Aerospace & Defense).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-497-2516. Verify interchangeability with system specifications before substitution.
Key specifications for 055155: Scale Accuracy: 2 PCT. MIDDLE THIRD OF RANGE,3 PCT. REMAINDER; Scale Name: PRESSURE; Overall Diameter: 2.150 INCHES MINIMUM AND 2.190 INCHES MAXIMUM IN; Actuation Type: BOURDON TUBE. 26 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.