The Meter,special Scale, cataloged under National Stock Number 6625-01-237-7373, 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. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-237-7373 |
| Primary Part Number | 643E384 |
| Item Name | Meter,special Scale |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Phaostron Instrument and Electronic Company |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 6 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 3.600 INCHES NOMINAL IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Operating Voltage Rating in Volts | 5.0 DC NOMINAL |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | SIX HOLE/STUD BOLT CIRCLE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD AND 2 TURRET |
| Meter Depth Behind Mounting Flange | 1.500 INCHES MAXIMUM IN |
| Circuit Current for Which Designed | DC |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Overall Diameter | 4.500 INCHES NOMINAL IN |
| Special Test Features | MEETS REQUIREMENTS OF MIL-M-10304 |
| Panel for Which Designed | MAGNETIC OR NONMAGNETIC |
| Dielectric Withstanding Voltage in Volts | 3000.0 |
| Supplementary Features | 5 VDC INCANDESCENT LAMPS USE TURRENTS VDC |
| Style Designator | ROUND FLUSH MTG |
| Mounting Hole Diameter | 0.150 INCHES NOMINAL IN |
| Features Provided | SELF-ILLUMINATION FACILITY AND ZERO ADJUSTER |
| Scale Division Quantity | 12 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Bolt Circle Diameter | 4.125 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Surface Treatment | ENAMEL |
| Environmental Protection | SHOCK RESISTANT AND VIBRATION RESISTANT |
| Unable to Decode | UNABLE TO DECODE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| 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 |
| Weight | 1.2000 lbs |
| Cube | 0.0470 cu ft |
| Part Number | Manufacturer |
|---|---|
| 643E384 | Phaostron Instrument and Electronic Company (USA) |
| Reference | Meaning |
|---|---|
| 519628-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6625-01-237-7373 is a Meter,special Scale, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-237-7373 has 1 manufacturer part number on file: 643E384 (Phaostron Instrument and Electronic Company).
Key specifications for 643E384: Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 3.600 INCHES NOMINAL IN; FSC Application Data: TEST SET,ELECT. EQUIP.; Operating Voltage Rating in Volts: 5.0 DC NOMINAL. 28 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.