The Voltmeter, cataloged under National Stock Number 6625-01-159-5922, 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 Phaostron Instrument and Electronic Company. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Item Name | Voltmeter |
| FSC / FSG | 6625 — Electrical and Electronic Properties Measuring and Testing Instruments (FSG 66) |
| Manufacturers | Phaostron Instrument and Electronic Company (CAGE 77221); Jewell Instruments Llc (CAGE 33005) |
| Parameter | Value |
|---|---|
| NSN | 6625-01-159-5922 |
| Primary Part Number | 633-18540/PW-0203 |
| Item Name | Voltmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Phaostron Instrument and Electronic Company |
| Status | ACTIVE |
| 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 | Z |
| Weight | 1.1000 lbs |
| Cube | 0.0470 cu ft |
| Part Number | Manufacturer |
|---|---|
| 633-18540/PW-0203 PRIMARY | Phaostron Instrument and Electronic Company (USA) |
| 3452-177 | Jewell Instruments Llc (USA) |
| Reference | Meaning |
|---|---|
| 101753-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems |
NSN 6625-01-159-5922 is a Voltmeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-159-5922 has 2 manufacturer part numbers on file: 633-18540/PW-0203 (Phaostron Instrument and Electronic Company), 3452-177 (Jewell Instruments Llc).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-196-1412, 1560-01-333-9609. Verify interchangeability with system specifications before substitution.
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.