The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-015-6489, 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 Bellofram Corporation. Government technical data includes 21 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-015-6489 |
| Primary Part Number | P18054 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Bellofram Corporation |
| Status | ACTIVE |
| Scale Accuracy | 1/2 OF 1 PCT ENTIRE RANGE |
| Scale Name | PRESSURE |
| Actuation Type | BOURDON TUBE |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 2.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 200.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4-1/2 IN. DIA IN |
| Graduation Unit | 20.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK, CENTER |
| Pointer Color | BLACK |
| Surface Treatment | ENAMEL BAKED CASE |
| Material | STEEL CORROSION RESISTING ACTUATING ELEMENT |
| Material | ALUMINUM CASE |
| Connection Quantity | 1 |
| Bezel Type | HINGE |
| 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 |
|---|---|
| P18054 | Bellofram Corporation (USA) |
| Reference | Meaning |
|---|---|
| 176F | 3/1 Design control — primary reference Liftec Inc Div Liftec, Inc. |
| 953A042H01 | 7/2 Vendor item drawing reference U.S. Government activity |
| 953A042H01 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Electronic Systems |
| P18054-A | 5/9 Secondary reference Bellofram Corporation |
NSN 6685-01-015-6489 is a Gage,pressure,dial Indicating, manufactured by Bellofram Corporation, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-015-6489 has 1 manufacturer part number on file: P18054 (Bellofram Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5660-01-062-8012. Verify interchangeability with system specifications before substitution.
Key specifications for P18054: Scale Accuracy: 1/2 OF 1 PCT ENTIRE RANGE; Scale Name: PRESSURE; Actuation Type: BOURDON TUBE; Scale Inscription/background Color: BLACK MARKINGS ON WHITE BACKGROUND. 21 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.