The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-00-252-3017, 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 27 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-252-3017 |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Scale Accuracy | 1/2 OF ONE SUBDIVISION ENTIRE RANGE; 1/2 IN. BETWEEN 5 IN. AND 30 IN. IN |
| Scale Name | PRESSURE AND PRESSURE-VACUUM |
| Overall Diameter | 5.813 INCHES NOMINAL IN |
| Actuation Type | SINGLE BOURDON TUBE |
| Mounting Method | SURFACE WALL |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE OR SILVERED BACKGROUND |
| Scale Smallest Increment | 5.0 INCHES AND 5.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 INCHES OF MERCURY AND +0.0 TO 300.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Mounting Hole Diameter | 0.219 INCHES NOMINAL IN |
| Scale Name for Which Pointer Is Designed | PRESSURE-VACUUM AND PRESSURE |
| Pointer Type | INDICATING AND REFERENCE |
| Adjustability | ADJUSTABLE OR NONADJUSTABLE |
| Scale Type | MULTIPLE |
| Connector Type Vent | NOT PROVIDED |
| Nondefinitive Spec/std Data | 3 TYPE AND 3 COMPOSITION AND 1 STRAIGHT |
| Dial Size | 4-1/2 IN. DIA IN |
| Bolt Circle Diameter | 5.375 INCHES NOMINAL IN |
| Connection Location | BOTTOM |
| Pointer Color | BLACK AND RED |
| Material | PLASTIC CASE |
| Material | STEEL CORROSION RESISTING ACTUATING ELEMENT |
| Material | PLASTIC PROTECTIVE CRYSTAL |
| Connection Quantity | 2 |
| Bezel Type | SLIPS-ON |
| 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 |
| Reference | Meaning |
|---|---|
| MILG18997B | 4/1 Identification reference U.S. Government activity |
NSN 6685-00-252-3017 is a Gage,compound Pressure-Vacuum,di, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 6685-00-252-3022, 6685-00-252-3037, 6685-00-252-3039. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-00-252-3017: Mounting Hole Quantity: 3; Scale Accuracy: 1/2 OF ONE SUBDIVISION ENTIRE RANGE; 1/2 IN. BETWEEN 5 IN. AND 30 IN. IN; Scale Name: PRESSURE AND PRESSURE-VACUUM; Overall Diameter: 5.813 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.