The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-01-197-5405, 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 Johnson Controls Navy Systems, Llc. Government technical data includes 25 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-197-5405 |
| Primary Part Number | 26-7122P |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Johnson Controls Navy Systems, Llc |
| Status | ACTIVE |
| Scale Name | VACUUM |
| Overall Diameter | 2.188 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Connection Location | BACK, CENTER |
| Mounting Method | PIPE FITTING |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 1.0 INCHES OF MERCURY (INHG) IN |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 POUNDS PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Specification/standard Data | 66935-26-7122P MANUFACTURERS SOURCE CONTROL |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2 IN. RD IN |
| Graduation Unit | 5.0 INCHES OF MERCURY IN |
| Connection Location | BACK, CENTER |
| Pointer Color | BLACK |
| Surface Treatment | ENAMEL CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | STEEL CORROSION RESISTING CASE |
| Material | COPPER ALLOY ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Bezel Type | SLIPS-ON |
| Connection Size | 0.562 IN. NPT DIA; 0.765 IN. LG 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 |
|---|---|
| 26-7122P PRIMARY | Johnson Controls Navy Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| J1814 | 5/9 Secondary reference Desco Corp Marsh Bellofram Div |
| J1814 | C/1 Advisory reference — outside the item-of-supply concept Bellofram Corporation |
NSN 6685-01-197-5405 is a Gage,compound Pressure-Vacuum,di, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-197-5405 has 1 manufacturer part number on file: 26-7122P (Johnson Controls Navy Systems, Llc).
Key specifications for 26-7122P: Scale Name: VACUUM; Overall Diameter: 2.188 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE; Mounting Connection Location: BACK, CENTER. 25 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.