The Voltmeter, cataloged under National Stock Number 6625-00-490-6875, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Custom Metering Company Inc. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-490-6875 |
| Primary Part Number | 1921-1621025 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Custom Metering Company Inc |
| Status | CANCELLED |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Meter Depth Behind Mounting Flange | 1.240 INCHES NOMINAL IN |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Installation Design | PANEL |
| Style Designator | RECTANGULAR FLUSH MTG |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Material | PLASTIC |
| Mounting Stud Length | 0.500 INCHES NOMINAL IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Indicator Type | DIAL W/POINTER |
| Mounting Stud Diameter | 0.112 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Measurement Range | +0.0 TO 25.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Scale Division Quantity | 50 SINGLE INDICATOR SINGLE RANGE |
| Sensitivity Rating | 1000.0 OHMS PER VOLT |
| Color | UNABLE TO DECODE |
| Power Source | EXTERNAL |
| Meter Body Diameter Behind Mounting Flange | 2.210 INCHES NOMINAL IN |
| Features Provided | MAGNETIC SHIELD AND ZERO ADJUSTER |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.140 INCHES NOMINAL IN |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Facility Type and Quantity | 4 THREADED STUD(S) |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.660 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| Successor | 6145-01-135-3622 |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Unit of Issue | EA |
| SMR Code | X |
| Part Number | Manufacturer |
|---|---|
| 09580 | Simpson Electric Company, Inc. (USA) |
| 1921-0-25VDC | Solartron Electronics Inc Weston Instruments Div (USA) |
| 1921-1621025 | Solartron Electronics Inc Weston Instruments Div (USA) |
| 1921-1621025 | Metermaster Inc Metermod Div (USA) |
| 1921-0-25VDC | Metermaster Inc Metermod Div (USA) |
| 1921-1621025 PRIMARY | Custom Metering Company Inc (USA) |
| 1921-0-25VDC | Custom Metering Company Inc (USA) |
| 9580 | Simpson Electric Company, Inc. (USA) |
NSN 6625-00-490-6875 is a Voltmeter, manufactured by Custom Metering Company Inc, classified under FSC 6625 (No Item Name Available). Status: cancelled.
NSN 6625-00-490-6875 has 8 cross-referenced part numbers: 09580 (Simpson Electric Company, Inc.), 1921-0-25VDC (Solartron Electronics Inc Weston Instruments Div), 1921-1621025 (Solartron Electronics Inc Weston Instruments Div), 1921-1621025 (Metermaster Inc Metermod Div), 1921-0-25VDC (Metermaster Inc Metermod Div) and 3 more.
There are 10 known substitutes for 6625-00-490-6875: 6625-00-946-6041, 6145-01-135-3622, 5935-00-020-8037 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1921-1621025: Movement Type: MOVING COIL, PERMANENT MAGNET; Meter Depth Behind Mounting Flange: 1.240 INCHES NOMINAL IN; Circuit Attachment Method and Quantity: 2 THREADED STUD; FSC Application Data: TEST SET,ELECT. EQUIP.. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 6625-00-490-6875 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.