The Meter,fluid Flow Indicating,diff, cataloged under National Stock Number 6680-01-563-5652, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Kobold Instruments Inc. Government technical data includes 13 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 | 6680-01-563-5652 |
| Primary Part Number | RCM-5126 |
| Item Name | Meter,fluid Flow Indicating,diff |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Kobold Instruments Inc |
| Status | ACTIVE |
| Pressure Type | LOW OR MEDIUM |
| Length | 6.390 INCHES NOMINAL IN |
| Scale Inscription/background Color | BLACK MARKINGS ON A WHITE BACKGROUND |
| Totalizing Integrator Register | NOT INCLUDED |
| Smallest Increment Indicated | 1.000 |
| Diameter | 1.500 INCHES NOMINAL IN |
| Case Shape | ROUND |
| Depth | 3.330 INCHES NOMINAL IN |
| Width | 4.550 INCHES NOMINAL IN |
| Material | COPPER ALLOY CASE |
| Media for Which Designed | LIQUID |
| Scale Presentation Range | 15 TO 100 RANGE OF NUMERICAL MARKINGS |
| Maximum Differential Pressure | 100.0 GPM FOR WATER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 531-8283630 ITEM NO E-2 | Naval Sea Systems Command (USA) |
| RCM-5126 PRIMARY | Kobold Instruments Inc (USA) |
NSN 6680-01-563-5652 is a Meter,fluid Flow Indicating,diff, manufactured by Kobold Instruments Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-563-5652 has 2 manufacturer part numbers on file: 531-8283630 ITEM NO E-2 (Naval Sea Systems Command), RCM-5126 (Kobold Instruments Inc).
Key specifications for RCM-5126: Pressure Type: LOW OR MEDIUM; Length: 6.390 INCHES NOMINAL IN; Scale Inscription/background Color: BLACK MARKINGS ON A WHITE BACKGROUND; Totalizing Integrator Register: NOT INCLUDED. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.