The Voltmeter, cataloged under National Stock Number 6625-01-237-9636, 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 General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-237-9636 |
| Primary Part Number | 105D3581 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | TWO HOLE/STUD |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 3.937 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 |
| Meter Body Height Behind Mounting Flange | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Special Test Features | CONFORMS TO MIL-M-10304 |
| Supplementary Features | INSULATION RES 100 MEGOHMS |
| Power Source | EXTERNAL |
| Style Designator | RECTANGULAR FLUSH MTG |
| Mounting Hole Diameter | 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Features Provided | MAGNETIC SHIELD AND ZERO ADJUSTER |
| Distance Between Mounting Facility Centers | 3.552 INCHES MINIMUM AND 3.572 INCHES MAXIMUM IN |
| Scale Division Quantity | 30 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Meter Body Width Behind Mounting Flange | 2.906 INCHES MINIMUM AND 2.968 INCHES MAXIMUM IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Surface Treatment | ANODIZE |
| Environmental Protection | SHOCK RESISTANT AND VIBRATION RESISTANT |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Material | STEEL |
| 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 | 0.4000 lbs |
| Cube | 0.0387 cu ft |
| Part Number | Manufacturer |
|---|---|
| 066-486-7136 | Hughes Corp Div Weschler Electric (USA) |
| 105D3581 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| Reference | Meaning |
|---|---|
| 066-486-7136 | 5/9 Secondary reference U.S. Government activity |
NSN 6625-01-237-9636 is a Voltmeter, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-237-9636 has 2 manufacturer part numbers on file: 066-486-7136 (Hughes Corp Div Weschler Electric), 105D3581 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 105D3581: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN; FSC Application Data: TEST SET,ELECT. EQUIP.; Indicator Type: DIAL W/POINTER. 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.