The Gage,vacuum,indicating, cataloged under National Stock Number 6685-01-278-9804, 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 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6685-01-278-9804 |
| Primary Part Number | J1805 |
| Item Name | Gage,vacuum,indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Bellofram Corporation |
| Status | ACTIVE |
| Scale Accuracy | PORM 2 PCT MIDDLE,3 PCT REMAINDER |
| Scale Name | VACUUM |
| Overall Diameter | 1.641 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Method | SURFACE |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 1.0 INCHES IN |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2 IN. DIA IN |
| Graduation Unit | 5.0 INCHES IN |
| Connection Location | BACK, CENTER |
| Pointer Color | BLACK |
| Material | STEEL CASE |
| Material | COPPER ALLOY ACTUATING ELEMENT |
| Material | PLASTIC PROTECTIVE CRYSTAL |
| Connection Quantity | 1 |
| Connection Size | 0.125 IN. NPT DIA 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 |
|---|---|
| J1805 PRIMARY | Bellofram Corporation (USA) |
| Reference | Meaning |
|---|---|
| A-6826 | 5/1 Secondary reference Elliott Machine Works Inc |
| J1805 | 5/9 Secondary reference Desco Corp Marsh Bellofram Div |
NSN 6685-01-278-9804 is a Gage,vacuum,indicating, manufactured by Bellofram Corporation, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-278-9804 has 1 manufacturer part number on file: J1805 (Bellofram Corporation).
Key specifications for J1805: Scale Accuracy: PORM 2 PCT MIDDLE,3 PCT REMAINDER; Scale Name: VACUUM; Overall Diameter: 1.641 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE. 22 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.