PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

403AGenerator,noise

Kay Elemetrics Corporation · NSN 6625-00-691-6608 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-691-6608 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-691-6608. Primary manufacturer part number: 403A.
Features
  • Generator,noise — FSC 6625
  • Frequency Per Channel: 3.0 MEGAHERTZ MINIMUM OUTPUT CHANNEL AND 500.0 MEGAHERTZ MAXIMUM OUTPUT CHANNEL
  • Signal Data Type Per Channel: OUTPUT CHANNEL RADIO FREQUENCY
  • Circuit Construction Type: ELECTRON TUBE
  • External AC Operating Voltage in Volts: 117.0 NOMINAL SINGLE VOLTAGE
  • Impedance Rating Per Channel: 50.000 OHMS OUTPUT CHANNEL
  • Phase: SINGLE
  • Indicator Device Type and Quantity: 1 METER
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Generator,noise, cataloged under National Stock Number 6625-00-691-6608, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Kay Elemetrics Corporation. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-691-6608
Primary Part Number403A
Item NameGenerator,noise
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerKay Elemetrics Corporation
StatusACTIVE
Frequency Per Channel3.0 MEGAHERTZ MINIMUM OUTPUT CHANNEL AND 500.0 MEGAHERTZ MAXIMUM OUTPUT CHANNEL
Signal Data Type Per ChannelOUTPUT CHANNEL RADIO FREQUENCY
Circuit Construction TypeELECTRON TUBE
External AC Operating Voltage in Volts117.0 NOMINAL SINGLE VOLTAGE
Impedance Rating Per Channel50.000 OHMS OUTPUT CHANNEL
PhaseSINGLE
Indicator Device Type and Quantity1 METER
Output Wave ShapeSINE
Operating AC Frequency in Hertz60.0 NOMINAL SINGLE VOLTAGE
Reference Data and LiteratureTO 33A1-8-185-1
Inclosure TypeENCASED
Installation DesignTOP OF CABINET/COUNTER
Operating Control MethodMANUAL
Average Life MeasurementNOT RATED
Basic Shape StyleRECTANGULAR OR SQUARE
Frequency Per Channel3.0 MEGAHERTZ MINIMUM OUTPUT CHANNEL AND 500.0 MEGAHERTZ MAXIMUM OUTPUT CHANNEL
Signal Data Type Per ChannelOUTPUT CHANNEL RADIO FREQUENCY
Circuit Construction TypeELECTRON TUBE
External AC Operating Voltage in Volts117.0 NOMINAL SINGLE VOLTAGE
Impedance Rating Per Channel50.000 OHMS OUTPUT CHANNEL
PhaseSINGLE
Indicator Device Type and Quantity1 METER
Output Wave ShapeSINE
Operating AC Frequency in Hertz60.0 NOMINAL SINGLE VOLTAGE
Reference Data and LiteratureTO 33A1-8-185-1
Inclosure TypeENCASED
Installation DesignTOP OF CABINET/COUNTER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
Heat Sink,electrical-Electronic
Voltmeter
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
5960-00-134-6031 INTERCHANGEABLE
Electron Tube
5975-00-153-677052C14 INTERCHANGEABLE
Cover,junction Box
Abb Installation Products Inc
3110-00-155-6387281478-112 INTERCHANGEABLE
Bearing,ball,annular
Naval Sea Systems Command
6240-00-182-7717 INTERCHANGEABLE
Lamp,incandescent
Cross-Reference Index
Part NumberManufacturer
403A PRIMARY Kay Elemetrics Corporation (USA)
Related Parts
5999-00-111-2018SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
6625-00-996-6340SUCCESSOR
VOLTMETER
5999-01-023-4509SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-082-1649SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5960-00-134-6031INTERCHANGEABLE
ELECTRON TUBE
5975-00-153-6770INTERCHANGEABLE
COVER,JUNCTION BOX
52C14
3110-00-155-6387INTERCHANGEABLE
BEARING,BALL,ANNULAR
281478-112
6240-00-182-7717INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 6625-00-691-6608?

NSN 6625-00-691-6608 is a Generator,noise, manufactured by Kay Elemetrics Corporation, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-691-6608?

NSN 6625-00-691-6608 has 1 cross-referenced part number: 403A (Kay Elemetrics Corporation).

What NSN replaces 6625-00-691-6608?

There are 8 known substitutes for 6625-00-691-6608: 5999-00-111-2018, 6625-00-996-6340, 5999-01-023-4509 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 403A?

Key specifications for 403A: Frequency Per Channel: 3.0 MEGAHERTZ MINIMUM OUTPUT CHANNEL AND 500.0 MEGAHERTZ MAXIMUM OUTPUT CHANNEL; Signal Data Type Per Channel: OUTPUT CHANNEL RADIO FREQUENCY; Circuit Construction Type: ELECTRON TUBE; External AC Operating Voltage in Volts: 117.0 NOMINAL SINGLE VOLTAGE. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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