The Meter,electrical Frequency, cataloged under National Stock Number 6625-01-042-3263, 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 Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6625-01-042-3263 |
| Primary Part Number | 2442666 |
| Item Name | Meter,electrical Frequency |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 2.150 INCHES NOMINAL IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 1.170 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Scale Selection Method | TERMINAL |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Overall Diameter | 2.695 INCHES MAXIMUM IN |
| Special Test Features | MEETS MIL-M-10304 REQUIREMENTS |
| Dielectric Withstanding Voltage in Volts | 3000.0 |
| Power Source | EXTERNAL |
| Style Designator | ROUND FLUSH MTG |
| Mounting Hole Diameter | 0.125 INCHES NOMINAL IN |
| Features Provided | ZERO ADJUSTER |
| Scale Division Quantity | 20 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Bolt Circle Diameter | 2.440 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Surface Treatment | ENAMEL |
| Environmental Protection | SHOCK RESISTANT AND VIBRATION RESISTANT |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Special Markings | FREQUENCY |
| Material | STEEL |
| 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 | 1.8000 lbs |
| Cube | 0.0034 cu ft |
| Part Number | Manufacturer |
|---|---|
| 2442666 PRIMARY | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| 2442666 | Phaostron Instrument and Electronic Company (USA) |
| Reference | Meaning |
|---|---|
| 2442666 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| MR26W001DCMAR | 5/1 Secondary reference Phaostron Instrument and Electronic Company |
NSN 6625-01-042-3263 is a Meter,electrical Frequency, manufactured by Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-042-3263 has 2 manufacturer part numbers on file: 2442666 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div), 2442666 (Phaostron Instrument and Electronic Company).
1 possible match (shared part number, not a government interchangeability claim): 6625-01-203-5722. Verify interchangeability with system specifications before substitution.
Key specifications for 2442666: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 2.150 INCHES NOMINAL IN; FSC Application Data: TEST SET,ELECT. EQUIP.; Indicator Type: DIAL W/POINTER. 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.