The Voltmeter, cataloged under National Stock Number 6625-01-466-3589, 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 Master Control Systems 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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-466-3589 |
| Primary Part Number | A-303-191 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Master Control Systems Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 BRACKET(S) |
| Meter Body Diameter Behind Mounting Flange | 2.000 INCHES NOMINAL IN |
| Indicator Type | DIAL W/POINTER |
| Circuit Attachment Method and Quantity | 4 SOLDER STUD |
| Meter Depth Behind Mounting Flange | 0.615 INCHES NOMINAL IN |
| Circuit Current for Which Designed | AC |
| Accuracy in Percent | +0.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES |
| Power Source | EXTERNAL |
| Style Designator | RECTANGULAR FLUSH MTG |
| Scale Division Quantity | 40 SINGLE INDICATOR ALL RANGES |
| Pointer Color | BLACK SINGLE INDICATOR ALL RANGES |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR ALL RANGES |
| Scale Graduation Type | LINEAR SINGLE INDICATOR ALL RANGES |
| Measurement Range | +0.0 TO 40.0 VOLTS, DC SINGLE INDICATOR ALL RANGES |
| Installation Design | CABINET |
| 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 | JF |
| Part Number | Manufacturer |
|---|---|
| A-303-191 PRIMARY | Master Control Systems Inc (USA) |
NSN 6625-01-466-3589 is a Voltmeter, manufactured by Master Control Systems Inc, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-466-3589 has 1 manufacturer part number on file: A-303-191 (Master Control Systems Inc).
Key specifications for A-303-191: Mounting Facility Type and Quantity: 1 BRACKET(S); Meter Body Diameter Behind Mounting Flange: 2.000 INCHES NOMINAL IN; Overall Height: 2.500 INCHES NOMINAL IN; Indicator Type: DIAL W/POINTER. 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.