The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-00-527-6366, 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 Ambac International Corporation Div Ambac International. Government technical data includes 26 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 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 | 6685-00-527-6366 |
| Primary Part Number | 142889 |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ambac International Corporation Div Ambac International |
| Status | ACTIVE |
| Scale Accuracy | 2 PCT ENTIRE RANGE |
| Scale Name | PRESSURE AND PRESSURE-VACUUM |
| Overall Diameter | 2.750 INCHES NOMINAL IN |
| Actuation Type | SINGLE BOURDON TUBE |
| Mounting Method | RIGID STEM |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Scale Smallest Increment | 1.0 INCHES AND 0.5 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 INCHES OF MERCURY AND +0.0 TO 6.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Scale Name for Which Pointer Is Designed | PRESSURE-VACUUM |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | MULTIPLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2-1/2 IN. DIA IN |
| Graduation Unit | 5.0 INCHES AND 2.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK |
| Pointer Color | BLACK |
| Surface Treatment | ENAMEL |
| Unable to Decode | UNABLE TO DECODE |
| Material | BRASS CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | BRONZE ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Bezel Type | THREAD |
| Connection Size | 0.500 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 |
|---|---|
| 142889 PRIMARY | Ambac International Corporation Div Ambac International (USA) |
NSN 6685-00-527-6366 is a Gage,compound Pressure-Vacuum,di, manufactured by Ambac International Corporation Div Ambac International, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-527-6366 has 1 manufacturer part number on file: 142889 (Ambac International Corporation Div Ambac International).
2 possible matches (shared part number, not a government interchangeability claim): 5815-00-897-9502, 5998-01-423-6152. Verify interchangeability with system specifications before substitution.
Key specifications for 142889: Scale Accuracy: 2 PCT ENTIRE RANGE; Scale Name: PRESSURE AND PRESSURE-VACUUM; Overall Diameter: 2.750 INCHES NOMINAL IN; Actuation Type: SINGLE BOURDON TUBE. 26 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.