The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-515-3485, 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 Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 28 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-00-515-3485 |
| Primary Part Number | 539223 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Scale Name | PRESSURE |
| Overall Diameter | 4.313 INCHES NOMINAL IN |
| Actuation Type | DOUBLE BOURDON TUBE |
| Mounting Method | FLUSH PANEL AND STUD(S) |
| Scale Inscription/background Color | WHITE FIGURES ON BLACK BACKGROUND |
| Scale Smallest Increment | 5.0 POUNDS LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 200.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Stud Location | BACK |
| Illuminative Method | INCANDESCENT LAMP |
| Stud Quantity | 2 |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 3-1/2 IN. SQ IN |
| Graduation Unit | 20.0 POUNDS LBS |
| Connection Location | BACK |
| Color | BLACK CASE |
| Pointer Color | RED AND WHITE |
| Surface Treatment | PAINT EPOXY CASE |
| Unable to Decode | UNABLE TO DECODE |
| Material | STEEL CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | BRONZE ACTUATING ELEMENT |
| Connection Quantity | 2 |
| Bezel Type | SLIPS-ON |
| Connection Size | 0.250 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 |
|---|---|
| N6853 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 539223 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| 539223 | 3/9 Design control — primary reference U.S. Government activity |
| N6853 | 5/9 Secondary reference U.S. Government activity |
NSN 6685-00-515-3485 is a Gage,pressure,dial Indicating, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-515-3485 has 2 manufacturer part numbers on file: N6853 (Eaton Aerospace, Llc Dba Jackson South), 539223 (Eaton Aerospace, Llc Dba Jackson South).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-184-7085. Verify interchangeability with system specifications before substitution.
Key specifications for 539223: Overall Height: 4.313 INCHES NOMINAL IN; Scale Name: PRESSURE; Overall Diameter: 4.313 INCHES NOMINAL IN; Actuation Type: DOUBLE BOURDON TUBE. 28 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.