The Voltmeter, cataloged under National Stock Number 6625-00-539-8734, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Simpson Electric Company, Inc.. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-539-8734 |
| Primary Part Number | 25S |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Simpson Electric Company, Inc. |
| Status | ACTIVE |
| Environmental Protection | AIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT |
| Dielectric Withstanding Voltage in Volts | 1500.0 |
| Measurement Range | +0.0 TO 40.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE |
| Furnished Items and Quantity | NUT 5; LOCKWASHER 5; SEAL 1 |
| Style Designator | ROUND FLUSH MTG |
| Indicator Type | DIAL W/POINTER |
| Features Provided | ZERO ADJUSTER |
| Scale Division Quantity | 40 SINGLE INDICATOR SINGLE RANGE |
| Sensitivity Rating | 1000.0 OHMS PER VOLT |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Special Markings | ON BACK,SEALED DO NOT OPEN |
| Color | UNABLE TO DECODE |
| Mounting Hole Diameter | 0.150 INCHES NOMINAL IN |
| Meter Depth Behind Mounting Flange | 1.181 INCHES NOMINAL IN |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Power Source | EXTERNAL |
| Meter Body Diameter Behind Mounting Flange | 2.720 INCHES NOMINAL IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Material | STEEL |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Overall Diameter | 3.500 INCHES NOMINAL IN |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Surface Treatment | PAINT |
| Mounting Bolt Circle Diameter | 3.156 INCHES NOMINAL IN |
| Installation Design | PANEL |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Circuit Current for Which Designed | DC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Criticality Code | Q |
| Unit of Issue | EA |
| SMR Code | JN |
NSN 6625-00-539-8734 is a Voltmeter, manufactured by Simpson Electric Company, Inc., classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-539-8734 has 3 cross-referenced part numbers: 25S (Simpson Electric Company, Inc.), 525-495 (Simpson Electric Company, Inc.), 05331 (Simpson Electric Company, Inc.).
There are 12 known substitutes for 6625-00-539-8734: 6220-00-056-6751, 6750-00-286-2690, 5120-00-293-3006 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 25S: Environmental Protection: AIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT; Dielectric Withstanding Voltage in Volts: 1500.0; Measurement Range: +0.0 TO 40.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE; Furnished Items and Quantity: NUT 5; LOCKWASHER 5; SEAL 1. 30 total characteristics are documented in the Federal Logistics Information System.