The Voltmeter, cataloged under National Stock Number 6625-01-342-3458, 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 Lockheed Martin Corporation Div Space. Government technical data includes 28 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6625-01-342-3458 |
| Primary Part Number | 590835-01 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Lockheed Martin Corporation Div Space |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED BODY |
| Meter Body Diameter Behind Mounting Flange | 1.000 INCHES MAXIMUM IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Circuit Attachment Method and Quantity | 2 SCREW AND 2 SOLDER LUG |
| Meter Depth Behind Mounting Flange | 0.901 INCHES MAXIMUM IN |
| Circuit Current for Which Designed | DC |
| Scale Selection Method | TERMINAL |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Overall Diameter | 1.250 INCHES MAXIMUM IN |
| Special Test Features | COMPLIES WITH MIL-M-10304/31 |
| Dielectric Withstanding Voltage in Volts | 1000.0 |
| Power Source | EXTERNAL |
| Style Designator | ROUND FLUSH MTG |
| Features Provided | MAGNETIC SHIELD |
| Scale Division Quantity | 20 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Surface Treatment | PAINT |
| Environmental Protection | AIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Special Markings | ON BACK,SEALED DO NOT OPEN |
| Material | PLASTIC ACRYLIC |
| Sensitivity Rating | 1.0 MILLIAMPERES |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 20.0 VOLTS, DC 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 | JN |
| Weight | 0.0100 lbs |
| Cube | 0.0010 cu ft |
| Part Number | Manufacturer |
|---|---|
| 590835-01 PRIMARY | Lockheed Martin Corporation Div Space (USA) |
| Reference | Meaning |
|---|---|
| MR06A020DCVVR | 5/2 Secondary reference U.S. Government activity |
| 590835-01 | 3/9 Design control — primary reference Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions |
NSN 6625-01-342-3458 is a Voltmeter, manufactured by Lockheed Martin Corporation Div Space, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-342-3458 has 1 manufacturer part number on file: 590835-01 (Lockheed Martin Corporation Div Space).
Key specifications for 590835-01: Mounting Facility Type and Quantity: 1 THREADED BODY; Meter Body Diameter Behind Mounting Flange: 1.000 INCHES MAXIMUM IN; FSC Application Data: TEST SET,ELECT. EQUIP.; Indicator Type: DIAL W/POINTER. 28 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.