PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

233AGenerator,signal

Keysight Technologies Inc · NSN 6625-00-556-8936 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-556-8936 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-556-8936. Primary manufacturer part number: 233A.
Features
  • Generator,signal — FSC 6625
  • Frequency Rating: 50.0 HERTZ MINIMUM AND 100.0 HERTZ MAXIMUM
  • Material: ALUMINUM ALLOY CASE
  • Modulated Frequency Rating: 150.0 HERTZ NOMINAL
  • Frequency Band Quantity: 4
  • Calibration Accuracy Rating: 2 PCT
  • Voltage Rating: 115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM
  • Modulator Location: EXTERNAL
Applications
  • Applications requiring Aluminum Alloy Case construction
General Description

The Generator,signal, cataloged under National Stock Number 6625-00-556-8936, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Keysight Technologies Inc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-556-8936
Primary Part Number233A
Item NameGenerator,signal
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Frequency Rating50.0 HERTZ MINIMUM AND 100.0 HERTZ MAXIMUM
MaterialALUMINUM ALLOY CASE
Modulated Frequency Rating150.0 HERTZ NOMINAL
Frequency Band Quantity4
Calibration Accuracy Rating2 PCT
Voltage Rating115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM
Modulator LocationEXTERNAL
Modulation TypeAM
Frequency Range Rating+0.050 TO 500.000 HERTZ
Modulation Degree60.0 PERCENT NOMINAL
Case Surface TreatmentENAMEL
Output Impedance Rating600.0 OHMS NOMINAL
Reference Data and Literature33A1-147-1
Functional DescriptionTEST TONE SOURCE FOR USE WITH OPEN WIRE CARRIER TELEPHONE SYSTEMS EMPLOYING TERMINAL TELEPHONES
PhaseSINGLE
Current TypeAC
Mounting TypeRACK
Frequency Rating50.0 HERTZ MINIMUM AND 100.0 HERTZ MAXIMUM
MaterialALUMINUM ALLOY CASE
Modulated Frequency Rating150.0 HERTZ NOMINAL
Frequency Band Quantity4
Calibration Accuracy Rating2 PCT
Voltage Rating115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM
Modulator LocationEXTERNAL
Modulation TypeAM
Frequency Range Rating+0.050 TO 500.000 HERTZ
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5998-01-108-7085 (2601144)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeVM
Weight61.3000 lbs
Cube1.5237 cu ft
Verified Substitutes 4
Synchronizer,tuner
5998-01-108-70852601144 SUCCESSOR
Circuit Card Assembly
Naval Ship Systems Command
5960-00-813-1526 INTERCHANGEABLE
Electron Tube
5962-01-067-30651813-0035 INTERCHANGEABLE
Microcircuit,linear
Keysight Technologies Inc
Cross-Reference Index
Part NumberManufacturer
233A PRIMARY Keysight Technologies Inc (USA)
233A Keysight Technologies, Inc. (USA)
233A Hewlett-Packard Company Dba HP (USA)
TYPESG71AFCC Joint Electronics Type Designation System (USA)
Related Parts
SUCCESSOR 5998-01-108-7085 Circuit Card Assembly · 2601144
6625-01-093-7562SUCCESSOR
SYNCHRONIZER,TUNER
5960-00-813-1526INTERCHANGEABLE
ELECTRON TUBE
5962-01-067-3065INTERCHANGEABLE
MICROCIRCUIT,LINEAR
1813-0035

Frequently Asked Questions

What is NSN 6625-00-556-8936?

NSN 6625-00-556-8936 is a Generator,signal, manufactured by Keysight Technologies Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-556-8936?

NSN 6625-00-556-8936 has 4 cross-referenced part numbers: 233A (Keysight Technologies Inc), 233A (Keysight Technologies, Inc.), 233A (Hewlett-Packard Company Dba HP), TYPESG71AFCC (Joint Electronics Type Designation System).

What NSN replaces 6625-00-556-8936?

There are 4 known substitutes for 6625-00-556-8936: 6625-01-093-7562, 5998-01-108-7085, 5960-00-813-1526 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 233A?

Key specifications for 233A: Overall Height: 10.250 INCHES NOMINAL IN; Frequency Rating: 50.0 HERTZ MINIMUM AND 100.0 HERTZ MAXIMUM; Material: ALUMINUM ALLOY CASE; Modulated Frequency Rating: 150.0 HERTZ NOMINAL. 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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