The Voltmeter, cataloged under National Stock Number 6625-01-005-7901, 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 Northrop Grumman Systems Corporation Dba Electronic Systems. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-005-7901 |
| Primary Part Number | 989C506H01 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Northrop Grumman Systems Corporation Dba Electronic Systems |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 2.800 INCHES MAXIMUM IN |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Meter Depth Behind Mounting Flange | 3.000 INCHES MAXIMUM IN |
| Circuit Current for Which Designed | DC |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES |
| Overall Diameter | 3.750 INCHES MAXIMUM IN |
| Style Designator | ROUND FLUSH MTG |
| Features Provided | ZERO ADJUSTER |
| Mounting Bolt Circle Diameter | 3.160 INCHES NOMINAL IN |
| Measurement Range | -10.0 TO 10.0 VOLTS, DC SINGLE INDICATOR FIRST RANGE |
| Measurement Range | -250.0 TO 250.0 VOLTS, DC SINGLE INDICATOR THIRD RANGE |
| Measurement Range | -50.0 TO 50.0 VOLTS, DC SINGLE INDICATOR SECOND RANGE |
| 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 | JN |
| Weight | 1.2000 lbs |
| Cube | 0.0740 cu ft |
| Part Number | Manufacturer |
|---|---|
| 989C506H01 PRIMARY | Northrop Grumman Systems Corporation Dba Electronic Systems (USA) |
| 3452-034 | Jewell Instruments Llc (USA) |
| PDS22532 | Northrop Grumman Systems Corporation Dba Electronic Systems (USA) |
| Reference | Meaning |
|---|---|
| 932-14 | 5/9 Secondary reference Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging |
| 345-034 | 5/9 Secondary reference Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging |
NSN 6625-01-005-7901 is a Voltmeter, manufactured by Northrop Grumman Systems Corporation Dba Electronic Systems, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-005-7901 has 3 manufacturer part numbers on file: 989C506H01 (Northrop Grumman Systems Corporation Dba Electronic Systems), 3452-034 (Jewell Instruments Llc), PDS22532 (Northrop Grumman Systems Corporation Dba Electronic Systems).
1 possible match (shared part number, not a government interchangeability claim): 2915-01-202-6386. Verify interchangeability with system specifications before substitution.
Key specifications for 989C506H01: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 2.800 INCHES MAXIMUM IN; Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE; Meter Depth Behind Mounting Flange: 3.000 INCHES MAXIMUM IN. 14 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.