The Gage,vacuum,indicating, cataloged under National Stock Number 6685-01-129-6480, 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 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-129-6480 |
| Primary Part Number | EA24-3VCP-RWB0 |
| Item Name | Gage,vacuum,indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Scale Accuracy | PORM 1 PCT ENTIRE RANGE |
| Scale Name | VACUUM |
| Overall Diameter | 5.876 INCHES NOMINAL IN |
| Actuation Type | BROWN TUBE |
| Mounting Method | FLUSH |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 0.5 INCHES OF MERCURY (INHG) IN |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 INCHES OF MERCURY IN |
| Mounting Hole Diameter | 0.219 INCHES NOMINAL IN |
| Pointer Type | INDICATING AND REFERENCE |
| Accessory Components and Quantity | FLUSH MTG RING ASSEMBLY 1 |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4-1/2 IN. DIA IN |
| Graduation Unit | 5.0 INCHES OF MERCURY IN |
| Bolt Circle Diameter | 5.376 INCHES NOMINAL IN |
| Connection Location | BACK |
| Pointer Color | BLACK AND RED |
| Surface Treatment | ENAMEL CASE |
| Material | NICKEL ALLOY ACTUATING ELEMENT |
| Material | PLASTIC PROTECTIVE CRYSTAL |
| Material | ALUMINUM CASE |
| Connection Quantity | 1 |
| Connection Size | 0.250 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 |
|---|---|
| SVQ4M2Y-G | Moeller Instrument Company, Inc. Dba Moeller Instrument Co (USA) |
| EA24-3VCP-RWB0 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 925275-0003 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| GL-0523 | C/1 Advisory reference — outside the item-of-supply concept Gardner Denver Nash Llc Dba Gardner Denver Engineered Products Group Div Gardner Denver Nash |
| 705652 PIECE 96 | C/1 Advisory reference — outside the item-of-supply concept L-3 Communications Westwood Corporation Dba Nmp Division Div L3 Westwood Corporation |
| SA24-3VCP-RWB0 | 5/9 Secondary reference Weksler Glass Thermometer Corp |
NSN 6685-01-129-6480 is a Gage,vacuum,indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-129-6480 has 2 manufacturer part numbers on file: SVQ4M2Y-G (Moeller Instrument Company, Inc. Dba Moeller Instrument Co), EA24-3VCP-RWB0 (Ashcroft Inc Dba Heise).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-249-7294. Verify interchangeability with system specifications before substitution.
Key specifications for EA24-3VCP-RWB0: Mounting Hole Quantity: 3; Scale Accuracy: PORM 1 PCT ENTIRE RANGE; Scale Name: VACUUM; Overall Diameter: 5.876 INCHES NOMINAL IN. 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.
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.