The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-233-9121, 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 Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-233-9121 |
| Primary Part Number | EB24-3PEP-RWB0 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Scale Accuracy | PORM 1 PCT OF FULL SCALE |
| Scale Name | PRESSURE |
| Overall Diameter | 4.969 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Method | FLUSH |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 1.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 60.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Mounting Hole Diameter | 0.219 INCHES NOMINAL IN |
| Pointer Type | INDICATING AND REFERENCE |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4-1/2 IN. DIA IN |
| Graduation Unit | 10.0 POUNDS PER SQUARE INCH LBS |
| Bolt Circle Diameter | 5.376 INCHES NOMINAL IN |
| Connection Location | BACK |
| Pointer Color | BLACK AND RED |
| Material | NICKEL ALLOY ACTUATING ELEMENT |
| Material | PLASTIC PROTECTIVE CRYSTAL |
| Material | ALUMINUM CASE |
| Connection Quantity | 2 |
| Connection Size | 0.250 IN. NPT TUBE 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 |
|---|---|
| EB24-3PEP-RWB0 | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc (USA) |
| Reference | Meaning |
|---|---|
| EB24-3PEP-RWB0 | 3/9 Design control — primary reference Ashcroft Inc Dba Heise |
| 63A146429P9 | 5/9 Secondary reference Lockheed Martin Corporation Div Rotary and Mission Systems |
| MHC188 | 5/1 Secondary reference Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am |
| SB24-3PEP-RWB0 | 5/9 Secondary reference Weksler Glass Thermometer Corp |
NSN 6685-01-233-9121 is a Gage,pressure,dial Indicating, manufactured by Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-233-9121 has 1 manufacturer part number on file: EB24-3PEP-RWB0 (Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc).
Key specifications for EB24-3PEP-RWB0: Mounting Hole Quantity: 3; Scale Accuracy: PORM 1 PCT OF FULL SCALE; Scale Name: PRESSURE; Overall Diameter: 4.969 INCHES NOMINAL IN. 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.