The Voltmeter, cataloged under National Stock Number 6625-00-673-5558, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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 | 6625-00-673-5558 |
| Primary Part Number | 1668281 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Mounting Hole Diameter | 0.143 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN |
| Dielectric Withstanding Voltage in Volts | 3000.0 |
| Mounting Bolt Circle Diameter | 3.155 INCHES MINIMUM AND 3.165 INCHES MAXIMUM IN |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Overall Diameter | 3.500 INCHES NOMINAL IN |
| Meter Body Diameter Behind Mounting Flange | 2.675 INCHES NOMINAL IN |
| Scale Division Quantity | 25 SINGLE INDICATOR SINGLE RANGE |
| Material | STEEL CORROSION RESISTING |
| Special Test Features | COMPLIES WITH MIL-M-10304 |
| Sensitivity Rating | 1000.0 OHMS PER VOLT |
| Special Markings | RED RECTANGLE AT 50 VOLTS |
| Environmental Protection | AIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Dial Scale Marking Color | BLACK AND RED SINGLE INDICATOR SINGLE RANGE |
| Installation Design | PANEL |
| Measurement Range | +0.0 TO 75.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE |
| Style Designator | ROUND FLUSH MTG |
| Features Provided | MAGNETIC SHIELD AND ZERO ADJUSTER |
| Mounting Facility Type and Quantity | 3 SCREW AND 3 UNTHREADED HOLE(S) |
| Meter Depth Behind Mounting Flange | 1.594 INCHES NOMINAL IN |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Power Source | EXTERNAL |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Circuit Current for Which Designed | DC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Unit of Issue | EA |
| SMR Code | X |
| Weight | 0.8900 lbs |
| Cube | 0.0510 cu ft |
| Part Number | Manufacturer |
|---|---|
| 766537 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| HS3Z | Jewell Instruments Llc (USA) |
| 1668281 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 631-16471A | Phaostron Instrument and Electronic Company (USA) |
NSN 6625-00-673-5558 is a Voltmeter, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-673-5558 has 4 cross-referenced part numbers: 766537 (Lockheed Martin Corporation Div Rms - Mitchel Field), HS3Z (Jewell Instruments Llc), 1668281 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 631-16471A (Phaostron Instrument and Electronic Company).
There are 12 known substitutes for 6625-00-673-5558: 6625-00-325-0977, 6625-01-206-9966, 6625-00-056-4544 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1668281: FSC Application Data: TEST SET,ELECT. EQUIP.; Indicator Type: DIAL W/POINTER; Mounting Hole Diameter: 0.143 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN; Dielectric Withstanding Voltage in Volts: 3000.0. 30 total characteristics are documented in the Federal Logistics Information System.