The Voltmeter, cataloged under National Stock Number 6625-00-031-0249, 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 Olympus America Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6625-00-031-0249 |
| Primary Part Number | 65B574 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Olympus America Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 THREADED STUD(S) |
| Meter Body Diameter Behind Mounting Flange | 2.180 INCHES NOMINAL IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | TWO HOLE/STUD |
| Circuit Attachment Method and Quantity | 2 BINDING POST |
| Meter Depth Behind Mounting Flange | 1.310 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Mounting Stud Diameter | 0.164 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR FLUSH MTG |
| Features Provided | MAGNETIC SHIELD AND ZERO ADJUSTER |
| Distance Between Mounting Facility Centers | 3.500 INCHES NOMINAL IN |
| Scale Division Quantity | 60 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Mounting Stud Length | 0.500 INCHES NOMINAL IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Material | PLASTIC PHENOLIC |
| Sensitivity Rating | 1000.0 OHMS PER VOLT |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 300.0 KILOVOLTS, DC SINGLE INDICATOR SINGLE RANGE |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Installation Design | PANEL |
| 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 65B574 PRIMARY | Olympus America Inc (USA) |
| Reference | Meaning |
|---|---|
| 65B574 | 3/9 Design control — primary reference Olympus Scientific Solutions Technologies Inc. |
| 524 | 5/9 Secondary reference Simpson Electric Co Simpson Instruments Div |
NSN 6625-00-031-0249 is a Voltmeter, manufactured by Olympus America Inc, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-00-031-0249 has 1 manufacturer part number on file: 65B574 (Olympus America Inc).
Key specifications for 65B574: Mounting Facility Type and Quantity: 2 THREADED STUD(S); Meter Body Diameter Behind Mounting Flange: 2.180 INCHES NOMINAL IN; Overall Height: 2.900 INCHES NOMINAL IN; FSC Application Data: TEST SET,ELECT. EQUIP.. 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.