The Manometer,u-Tube, cataloged under National Stock Number 6685-01-526-1709, 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 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-526-1709 |
| Item Name | Manometer,u-Tube |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Zero Adjuster | PROVIDED |
| Connection Type | THREADED |
| Operating Pressure | 10.7 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Accessory Components and Quantity | SERIES 475-FM MANOMETER 1,A303STATIC PRESSURE TIPS 2,9 FT 3/8 INCH ID RUBBER TUBE 2,66-6 CF PITOT TUBE 1,A397DRILL 1, A532 AIR VELOCITY 1, SLIDE CHART 1,INSTRUCTION SHEET H-11-1 IN |
| Connection Facility Type | EXTERNAL |
| Connection Location | TOP |
| Functional Description | FIELD CALIBRATION LOW PRESSURE PNEUMATIC SYSTEMS I.E.HVAC,CLEAN ROOMS.VACUMM SYSTEMS |
| Usage Design | MAINTAIN AIR PROTECTIVE COVER EGLIN AN/FPS-85 RADAR |
| Mounting Type | CARRYING CASE |
| 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 |
|---|---|
| 475-1-FM-AV | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-01-526-1709 is a Manometer,u-Tube, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-526-1709: Zero Adjuster: PROVIDED; Connection Type: THREADED; Operating Pressure: 10.7 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Accessory Components and Quantity: SERIES 475-FM MANOMETER 1,A303STATIC PRESSURE TIPS 2,9 FT 3/8 INCH ID RUBBER TUBE 2,66-6 CF PITOT TUBE 1,A397DRILL 1, A532 AIR VELOCITY 1, SLIDE CHART 1,INSTRUCTION SHEET H-11-1 IN. 9 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.