The Wattmeter, cataloged under National Stock Number 6625-01-672-4641, 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 20 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 | 6625-01-672-4641 |
| Primary Part Number | MR492W1500ACKWH |
| 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 THREADED STUD(S) |
| Meter Body Diameter Behind Mounting Flange | 3.9375 INCHES NOMINAL IN |
| Phase | THREE |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Meter Depth Behind Mounting Flange | 5.312 INCHES NOMINAL IN |
| Circuit Current for Which Designed | AC |
| Accuracy in Percent | -1.5 TO 1.5 AT FULL SCALE SINGLE INDICATOR ALL RANGES |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.376 INCHES NOMINAL IN |
| Mounting Stud Diameter | 0.25 INCHES NOMINAL IN |
| Power Source | EXTERNAL |
| Style Designator | ROUND FLUSH MTG W/4 TABS |
| Pointer Color | BLACK SINGLE INDICATOR ALL RANGES |
| Environmental Protection | WATERTIGHT |
| Mounting Stud Length | 0.625 INCHES NOMINAL IN |
| Frequency Rating | 60.0 HERTZ NOMINAL |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 3.376 INCHES NOMINAL IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR ALL RANGES |
| Measurement Range | +0.0 TO 1500.0 KILOWATTS SINGLE INDICATOR ALL RANGES |
| Installation Design | PANEL |
| 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 |
|---|---|
| MR492W1500ACKWH PRIMARY | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc (USA) |
NSN 6625-01-672-4641 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 6625-01-672-4641 has 1 manufacturer part number on file: MR492W1500ACKWH (Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc).
Key specifications for MR492W1500ACKWH: Mounting Facility Type and Quantity: 4 THREADED STUD(S); Meter Body Diameter Behind Mounting Flange: 3.9375 INCHES NOMINAL IN; Overall Height: 4.421875 INCHES NOMINAL IN; Phase: THREE. 20 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.