The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-157-5540, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-157-5540 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Scale Name | PRESSURE |
| Overall Diameter | 3.500 INCHES NOMINAL IN |
| Mounting Connection Location | BACK |
| Mounting Method | FLANGE |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 5000.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Mounting Hole Diameter | 0.160 INCHES NOMINAL IN |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | DIAL |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2.690 IN. IN |
| Connection Location | BACK, CENTER |
| Pointer Color | BLACK |
| Connection Quantity | 1 |
| Connection Size | 1/4-18 ANPT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 8222475-1 | 5/9 Secondary reference U.S. Government activity |
| 8222582-1 | 5/9 Secondary reference U.S. Government activity |
| A047901002 | 3/9 Design control — primary reference Zwick Energy Researach Organization Inc |
| 8222582-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-01-157-5540 is a Gage,pressure,dial Indicating, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-157-5540: Mounting Hole Quantity: 3; Scale Name: PRESSURE; Overall Diameter: 3.500 INCHES NOMINAL IN; Mounting Connection Location: BACK. 17 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.