The Voltmeter, cataloged under National Stock Number 6625-01-446-5473, 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 Northrop Grumman Systems Corp. Government technical data includes 4 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-446-5473 |
| Primary Part Number | 878415 ITEM NO. 144 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Indicator Type | DIAL W/POINTER |
| Power Source | EXTERNAL |
| Reliability Indicator | NOT ESTABLISHED |
| 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 | J |
| Part Number | Manufacturer |
|---|---|
| 618-18763 | Phaostron Instrument and Electronic Company (USA) |
| 972387-1 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 878415 ITEM NO. 144 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
NSN 6625-01-446-5473 is a Voltmeter, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-446-5473 has 3 manufacturer part numbers on file: 618-18763 (Phaostron Instrument and Electronic Company), 972387-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 878415 ITEM NO. 144 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 878415 ITEM NO. 144: Indicator Type: DIAL W/POINTER; Power Source: EXTERNAL; Reliability Indicator: NOT ESTABLISHED; End Item Identification: CONSOLE E/I FSCM 77221. 4 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.