The Wattmeter, cataloged under National Stock Number 6625-01-645-9558, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6625-01-645-9558 |
| Primary Part Number | MR49W2000ACKWH |
| Item Name | Wattmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 SCREW |
| Meter Body Diameter Behind Mounting Flange | 3.94 INCHES NOMINAL IN |
| Phase | THREE |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Circuit Current for Which Designed | AC |
| Overall Diameter | 4.0 INCHES NOMINAL IN |
| Dielectric Withstanding Voltage in Volts | 120.0 |
| Mounting Hole Diameter | 0.312 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Barrel Width | 5.312 INCHES NOMINAL IN |
| Frequency Rating | 60.0 HERTZ NOMINAL |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Display Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| 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 |
|---|---|
| MR49W2000ACKWH PRIMARY | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc (USA) |
NSN 6625-01-645-9558 is a Wattmeter, manufactured by Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-645-9558 has 1 manufacturer part number on file: MR49W2000ACKWH (Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc).
Key specifications for MR49W2000ACKWH: Mounting Facility Type and Quantity: 4 SCREW; Meter Body Diameter Behind Mounting Flange: 3.94 INCHES NOMINAL IN; Overall Height: 4.421875 INCHES NOMINAL IN; Phase: THREE. 15 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.