The Voltmeter, cataloged under National Stock Number 6625-00-481-4397, 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 Kato Engineering Inc.. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-481-4397 |
| Primary Part Number | 550-11101-21 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Kato Engineering Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 THREADED STUD(S) |
| Meter Body Diameter Behind Mounting Flange | 2.794 INCHES NOMINAL IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 1.303 INCHES NOMINAL IN |
| Circuit Current for Which Designed | AC |
| Movement Type | MOVING IRON VANE |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES |
| Mounting Stud Diameter | 0.138 INCHES NOMINAL IN |
| Supplementary Features | TERMINAL RESISTANCE: 15000 OHMS; OVERLOAD: 20 PERCENT; INSULATION LEVEL: 2600 VOLTS RMS; RESPONSE TIME: 2.5 SECONDS MAXIMUM |
| Power Source | EXTERNAL |
| Style Designator | RECTANGULAR FLUSH MTG |
| Features Provided | ZERO ADJUSTER |
| Scale Division Quantity | 75 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Bolt Circle Diameter | 2.760 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Environmental Protection | WATER RESISTANT |
| Mounting Stud Length | 0.500 INCHES NOMINAL IN |
| Frequency Rating | 400.0 HERTZ NOMINAL |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 150.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE |
| Furnished Items and Quantity | GASKET 1; MTG HDW 3; TERM.HDW 2 |
| 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 | JN |
| Weight | 1.0000 lbs |
| Cube | 0.0570 cu ft |
| Part Number | Manufacturer |
|---|---|
| 162061PZPZ | Yokogawa Corporation of America (USA) |
| 550-11101-21 PRIMARY | Kato Engineering Inc. (USA) |
| 550-11101-21 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 016-02VA-PZPZ | 5/9 Secondary reference Crompton Metermaster Inc |
| 816X1-A0-91 | 5/9 Secondary reference General Electric Co Meter Business Dept |
| 016-02VA-PZPZ | 5/9 Secondary reference Tyco Electronics Crompton Instrument |
| 50-162061PZPZ2 | 5/9 Secondary reference General Electric Co Instrument Products Section |
NSN 6625-00-481-4397 is a Voltmeter, manufactured by Kato Engineering Inc., classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-00-481-4397 has 3 manufacturer part numbers on file: 162061PZPZ (Yokogawa Corporation of America), 550-11101-21 (Kato Engineering Inc.), 550-11101-21 (Lockheed Martin Corporation Div Rms).
Key specifications for 550-11101-21: Mounting Facility Type and Quantity: 3 THREADED STUD(S); Meter Body Diameter Behind Mounting Flange: 2.794 INCHES NOMINAL IN; Overall Height: 3.500 INCHES NOMINAL IN; FSC Application Data: TEST SET,ELECT. EQUIP.. 27 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.