The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-656-1979, 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 Cambridge Valve & Fitting, Inc. Dba Cambridge Valve & Fitting Inc. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-656-1979 |
| Primary Part Number | PGI-40M-PG5000-CANX |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Cambridge Valve & Fitting, Inc. Dba Cambridge Valve & Fitting Inc |
| Status | ACTIVE |
| Scale Name | POUNDS PRESSURE |
| Overall Diameter | 1.50 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Scale Range | +0.0 TO 5000.0 POUNDS PER SQUARE INCH LBS |
| Material Document and Classification | AISI 0304 ASSN STD SINGLE MATERIAL RESPONSE CASE |
| Scale Type | ARC |
| Pointer Color | BLACK |
| Material | STEEL COMP 304 CASE |
| 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 |
|---|---|
| PGI-40M-PG5000-CANX PRIMARY | Cambridge Valve & Fitting, Inc. Dba Cambridge Valve & Fitting Inc (USA) |
| 443-185 | Kahn Instruments, Incorporated (USA) |
NSN 6685-01-656-1979 is a Gage,pressure,dial Indicating, manufactured by Cambridge Valve & Fitting, Inc. Dba Cambridge Valve & Fitting Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-656-1979 has 2 manufacturer part numbers on file: PGI-40M-PG5000-CANX (Cambridge Valve & Fitting, Inc. Dba Cambridge Valve & Fitting Inc), 443-185 (Kahn Instruments, Incorporated).
Key specifications for PGI-40M-PG5000-CANX: Scale Name: POUNDS PRESSURE; Overall Diameter: 1.50 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE; Scale Range: +0.0 TO 5000.0 POUNDS PER SQUARE INCH LBS. 8 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.