The Wattmeter, cataloged under National Stock Number 6625-01-307-9891, 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 Yokogawa Corporation of America. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-307-9891 |
| Primary Part Number | 103221ARDR7CRC |
| Item Name | Wattmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Yokogawa Corporation of America |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 THREADED STUD(S) |
| Meter Body Diameter Behind Mounting Flange | 3.970 INCHES NOMINAL IN |
| Operating Voltage Rating in Volts | 120.0 AC NOMINAL |
| Phase | THREE |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 5.220 INCHES NOMINAL IN |
| Circuit Current for Which Designed | AC |
| Scale Selection Method | TERMINAL |
| Accuracy in Percent | -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.380 INCHES NOMINAL IN |
| Mounting Stud Diameter | 0.250 INCHES NOMINAL IN |
| Dielectric Withstanding Voltage in Volts | 2300.0 |
| Power Source | EXTERNAL |
| Style Designator | RECTANGULAR FLUSH MTG |
| Features Provided | TRANSFORMER AND ZERO ADJUSTER |
| Scale Division Quantity | 50 SINGLE INDICATOR SINGLE RANGE |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Environmental Protection | DUST RESISTANT AND HUMIDITY RESISTANT |
| Mounting Stud Length | 0.625 INCHES NOMINAL IN |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 3.380 INCHES NOMINAL IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Weight | 5.0000 lbs |
| Cube | 0.3119 cu ft |
| Part Number | Manufacturer |
|---|---|
| 103221ARDR7CRC PRIMARY | Yokogawa Corporation of America (USA) |
| Reference | Meaning |
|---|---|
| AB-40 | 5/1 Secondary reference Yokogawa Corporation of America |
NSN 6625-01-307-9891 is a Wattmeter, manufactured by Yokogawa Corporation of America, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-307-9891 has 1 manufacturer part number on file: 103221ARDR7CRC (Yokogawa Corporation of America).
2 possible matches (shared part number, not a government interchangeability claim): 6625-01-308-6344, 4920-01-503-8113. Verify interchangeability with system specifications before substitution.
Key specifications for 103221ARDR7CRC: Mounting Facility Type and Quantity: 4 THREADED STUD(S); Meter Body Diameter Behind Mounting Flange: 3.970 INCHES NOMINAL IN; Overall Height: 4.330 INCHES NOMINAL IN; Operating Voltage Rating in Volts: 120.0 AC NOMINAL. 26 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.