The Manometer,u-Tube, cataloged under National Stock Number 6685-00-252-6559, 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 Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-252-6559 |
| Primary Part Number | M200-GI0050 |
| Item Name | Manometer,u-Tube |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument |
| Status | ACTIVE |
| Zero Adjuster | PROVIDED |
| Indicator Type | ONE LIQUID |
| Equalizing Valve | NOT PROVIDED |
| Indicating Liquid for Which Designed | MERCURY |
| Scale Smallest Increment | 0.100 INCHES IN |
| Receptacle Type | EXPANSION CHAMBER |
| Indicating Liquid | NOT PROVIDED |
| Connection Type | THREADED |
| Scale Range | +0.000 TO 60.000 INCHES IN |
| Operating Pressure | 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Connection Facility Type | INTERNAL |
| Connection Location | TOP |
| Parallax Eliminating Feature | PROVIDED |
| Control Valve | NOT PROVIDED |
| Mounting Provision for Which Designed | WALL |
| Thread Size and Series/type Designator | 0.250-18 NPT |
| 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 |
|---|---|
| M200-GI0050 PRIMARY | Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument (USA) |
| Reference | Meaning |
|---|---|
| B2116 | 5/1 Secondary reference Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument |
| 20DA40WM60 | 5/9 Secondary reference Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument |
NSN 6685-00-252-6559 is a Manometer,u-Tube, manufactured by Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-252-6559 has 1 manufacturer part number on file: M200-GI0050 (Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument).
Key specifications for M200-GI0050: Zero Adjuster: PROVIDED; Indicator Type: ONE LIQUID; Equalizing Valve: NOT PROVIDED; Indicating Liquid for Which Designed: MERCURY. 16 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.