The Gage,absolute Pressure,dial Indi, cataloged under National Stock Number 6685-00-849-2256, 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 Ashcroft Inc Dba Heise. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-849-2256 |
| Primary Part Number | C00ATMFAAV0000N |
| Item Name | Gage,absolute Pressure,dial Indi |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| FSC Application Data | GAGE,ABSOLUTE PRESSURE,DIAL,INDICATING,EXCEPT ENGINE |
| Scale Accuracy | 1/10 OF 1 PCT ENTIRE RANGE |
| Scale Name | ABSOLUTE PRESSURE |
| Overall Diameter | 17.688 INCHES NOMINAL IN |
| Actuation Type | SINGLE BOURDON TUBE |
| Mounting Method | FLUSH PANEL |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Scale Smallest Increment | 0.1 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | INTERNAL |
| Scale Range | +0.0 TO 75.0 POUNDS PER SQUARE INCH ABSOLUTE LBS |
| Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 16 IN. DIA IN |
| Graduation Unit | 5.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK |
| Pointer Color | BLACK |
| Unable to Decode | UNABLE TO DECODE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | ALUMINUM CASE |
| Material | STEEL COMP 403 ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Bezel Type | HINGE |
| Connection Size | 1/8 IN. NPT IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| C00ATMFAAV0000N PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| SIZE16 | 5/1 Secondary reference Ashcroft Inc Dba Heise |
NSN 6685-00-849-2256 is a Gage,absolute Pressure,dial Indi, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-849-2256 has 1 manufacturer part number on file: C00ATMFAAV0000N (Ashcroft Inc Dba Heise).
2 possible matches (shared part number, not a government interchangeability claim): 6685-00-849-3154, 6515-01-279-6486. Verify interchangeability with system specifications before substitution.
Key specifications for C00ATMFAAV0000N: Mounting Hole Quantity: 3; FSC Application Data: GAGE,ABSOLUTE PRESSURE,DIAL,INDICATING,EXCEPT ENGINE; Scale Accuracy: 1/10 OF 1 PCT ENTIRE RANGE; Scale Name: ABSOLUTE PRESSURE. 27 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.
NSN 6685-00-849-2256 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.