The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-007-8646, 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 Meggitt Safety Systems Inc. Government technical data includes 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-007-8646 |
| Primary Part Number | 18150907 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Meggitt Safety Systems Inc |
| Status | ACTIVE |
| Scale Accuracy | 4 PERCENT FULL SCALE |
| Scale Name | PRESSURE |
| Overall Diameter | 1.218 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Connection Location | BACK, CENTER |
| Mounting Method | EXTERNAL THREAD |
| Scale Inscription/background Color | WHITE FIGURES,BLACKBACKGROUND |
| Scale Smallest Increment | 250.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Scale Range | +0.000 TO 5000.000 POUNDS PRESSURE PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 1.218 IN. DIA IN |
| Graduation Unit | 1000.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK, CENTER |
| Surface Treatment | LACQUER CASE |
| Unable to Decode | UNABLE TO DECODE |
| Material | PLASTIC ACRYLIC PROTECTIVE CRYSTAL |
| Material | ALUMINUM ALLOY CASE |
| Material | NICKEL ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Connection Size | 0.500 IN. DIA 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 |
|---|---|
| A51H9029-1 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| 18150907 PRIMARY | Meggitt Safety Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| A51H9029-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 18150907 | 5/9 Secondary reference Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County |
NSN 6685-00-007-8646 is a Gage,pressure,dial Indicating, manufactured by Meggitt Safety Systems Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-007-8646 has 2 manufacturer part numbers on file: A51H9029-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), 18150907 (Meggitt Safety Systems Inc).
Key specifications for 18150907: Scale Accuracy: 4 PERCENT FULL SCALE; Scale Name: PRESSURE; Overall Diameter: 1.218 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE. 23 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.